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Cited by 46Plant tissue culture and regenerationPlant Genetic and Mutation StudiesGenetically Modified Organisms Research

Somaclonal Variation and Clonal Fidelity in Commercial Micropropagation: Challenges and Perspectives

Open access
Majumder, Sweety, Igamberdiev, Abir U., Debnath, Samir C.·2025·Agronomy
DOI 10.3390/agronomy15061489
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Abstract

Plant tissue culture has been recognized as an essential technology in plant science research. This process is widely used to regenerate and conserve phenotypically and genetically identical plant resources. The advancements in tissue culture methods have become a feasible option for the micropropagation of plants at the commercial level. The success of commercial micropropagation necessitates genetic stability among regenerated plants. Sometimes, in vitro-grown plants show genetic and epigenetic alterations due to stressful artificial culture conditions, media compositions, and explant types. As a result, it is essential to ensure genetic stability among tissue culture-derived plantlets at a very early stage. Somaclonal variations can be detected by phenotypic assessment, cytogenetic, DNA-based molecular markers, bisulfite sequencing, and RNA sequencing. This review aims to describe the causes behind somaclonal variation, the selection of somaclonal variants, and their uses in crop and plant improvement at the commercial level. This study discusses the optimization processes of undesirable genetic and epigenetic variation among micropropagated plants and their application in global horticulture, agriculture, and forestry.

AI snapshot

Written from the paper’s full text.

TL;DR

This review describes the causes, detection, and management of somaclonal variation in commercial micropropagation, emphasizing the need to maintain clonal fidelity. It argues that direct organogenesis, optimized media and PGRs, limited subcultures, meristematic explants, bioreactors, cryopreservation, and molecular screening can reduce undesirable variation, while selected somaclonal variants can be useful for crop improvement.

Key findings

  • Somaclonal variation arises from genetic and epigenetic changes under in vitro stress, including point mutations, chromosomal rearrangements, ploidy changes, DNA methylation, histone modifications, and small RNA misregulation. Examples include banana variants increasing significantly after the eighth subculture while propagation rates declined, triticale showing 51% tissue culture-induced variation (43% sequence variation, 5% demethylation, 3% de novo methylation), and maize with 39% of progeny families showing altered methylation.
  • Detection ranges from phenotypic and cytogenetic methods to molecular markers and epigenetic assays. Reported examples include orange with 99% of nucellar-derived plantlets genetically identical versus 20–30% variation in ovary-derived plantlets; Populus with 38.33% RAPD polymorphism; orchid showing 100% monomorphism in hormone-free medium versus 1.52% RAPD, 1.19% ISSR, and 3.97% SCoT variation in hormone-enriched medium; apple rootstock EMLA 111 with 92–100% genetic similarity; coffee with 98–99% similarity; and Aloe vera with 0% polymorphism from direct organogenesis versus 80% from indirect regeneration.
  • Optimization strategies include meristematic explants, direct organogenesis, reduced PGR concentrations, fewer subcultures, bioreactor systems, cryopreservation, and marker-assisted selection. In Musa spp., somaclonal variants appeared from the fifth subculture at 1.3% and increased to 3.8% after 11 subcultures.
  • Somaclonal variation can also be used for crop improvement, with desirable variants reported for drought tolerance, disease resistance, yield, and quality in crops such as rice, tomato, eggplant, cucumber, carrot, banana, grape, potato, sugarcane, wheat, and pineapple.

Methods

  • Narrative review synthesizing literature on somaclonal variation and clonal fidelity in commercial micropropagation, covering mechanisms, influencing factors, detection methods, optimization strategies, and crop-improvement applications.
  • Includes compiled tables of species, explant types, media/PGRs, culture conditions, detection methods, and reported findings across horticulture, agriculture, and forestry.
  • No primary experimental data, systematic search protocol, or statistical analysis are described; the work is a literature-based synthesis.

Limitations

  • The paper states that a comprehensive understanding of somaclonal variation remains elusive and that challenges remain in making molecular assays routine and affordable for experimental and commercial uses.
  • Evident from the text: as a narrative review, it does not report a systematic search strategy or inclusion criteria, and its tables are selective compilations with many “Not specified” entries and some incomplete or ambiguous details.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.3390/agronomy15061489

Cites

179 of 179 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

114 of 221 cited sources checked · 47 supported · 2 flagged · accuracy not yet measured

  • Premisecitation

    In X Triticosecale spp., 51% of tissue culture-induced variation was observed.

    “51% of tissue culture-induced variation”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [156] Zimny, 2015, Tissue Culture-Induced Genetic and Epigenetic Variation in Triticale (× Triticosecale Spp. Wittmack Ex A. Camus 1927) Regenerants, Plant Mol. Biol. source

      Results > MetAFLP results, Table 2 (page not provided), reports mean total tissue culture-induced variation of 29.12% across triticale genotypes and regeneration approaches. Its highest listed value is 36.55%, not 51%. (LLM, conf=0.88)

      Checked by a reasoning model — may be wrong.

      Experimental — accuracy not yet measured
  • Premisecitation

    Micropropagation is a highly efficient method for producing genetically identical plant materials.

    “Micropropagation is a highly efficient method for producing genetically identical plant materials [9,10].”
    Quote in the paperSubstantial claim2 of 2 sources checked
    • cites [9] Ozyigit, I.I., Dogan, I., Hocaoglu-Ozyigit, A., Yalcin, B., Erdogan, A., Yalcin, I.E., Cabi, E., and Kaya, Y. (2023). Production of Secondary Metabolites Using Tissue Culture-Based Biotechnological Applications. Front. Plant Sci., 14. source
    • cites [10] Debnath, 2012, Morphological and Molecular Analyses in Micropropagated Berry Plants Acclimatized under Ex Vitro Condition, Can. J. Plant Sci. source
  • Premisecitation

    Somaclonal variations result from genetic and epigenetic changes that can occur in tissue culture-induced regenerated plants.

    “Somaclonal variations result from the genetic and epigenetic changes that can occur in tissue culture-induced regenerated plants [28].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [28] Duta-Cornescu, G., Constantin, N., Pojoga, D.-M., Nicuta, D., and Simon-Gruita, A. (2023). Somaclonal Variation—Advantage or Disadvantage in Micropropagation of the Medicinal Plants. Int. J. Mol. Sci., 24. source
  • Premisecitation

    Micropropagation is an effective biotechnology technique used in horticulture, forestry, and agriculture that allows rapid and large-scale reproduction of true-to-type, disease-free, and genetically superior varieties.

    “Micropropagation is an effective biotechnology technique used in the horticulture, forestry, and agriculture sectors that allows for the rapid and largescale reproduction of traits that are true-to-type, disease-free, and genetically superior varieties [12,13].”
    Quote in the paperNot a substantial claim1 of 2 sources checked
    • cites [12] Yancheva, S., and Kondakova, V. (2018). Plant Tissue Culture Technology: Present and Future Development. Bioprocessing of Plant In Vitro Systems, Springer. source
    • cites [13] Costa, G.F.D., Cabral, P.D.S., Silva, F.G., Rubio Neto, A., and Mendonça, M.A.C. (2022). Clonal Fidelity and Genetic Diversity of Micropropagated Hancornia Speciosa Gomes (Apocynaceae) as Evaluated by Molecular Markers. Forests, 13. source

      The Introduction (p. 2) says micropropagation can rapidly multiply plants with desirable characteristics on a large scale under adequate phytosanitary conditions. The Conclusions report genetic fidelity for H. speciosa under the study's conditions. The paper does not establish that the resulting plants are disease-free or genetically superior, or document use across all three named sectors. (LLM, conf=0.85)

      Experimental — accuracy not yet measured
  • Premisecitation

    Adverse in vitro conditions lead to overproduction of reactive oxygen species (ROS), which cause molecular disruptions including alterations in DNA methylation patterns, chromosomal aberrations, strand breakages, and point mutations.

    “These adverse conditions lead to the overproduction of reactive oxygen species (ROS), which are known to cause a variety of molecular disruptions, including alterations in DNA methylation patterns, chromosomal aberrations, strand breakages, and point mutations [43].”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [43] Huang, H., Ullah, F., Zhou, D.-X., Yi, M., and Zhao, Y. (2019). Mechanisms of ROS Regulation of Plant Development and Stress Responses. Front. Plant Sci., 10. source

      The Introduction says unfavorable circumstances increase ROS production and that high ROS levels can damage DNA. “Generation and Removal of ROS in Plants” specifically mentions DNA single-strand breakage, while “Interplay Between ROS and Epigenetic Modification” links ROS to DNA methylation. The paper does not establish these effects specifically for adverse in vitro conditions or report chromosomal aberrations and point mutations as outcomes. (LLM, conf=0.88)

      Experimental — accuracy not yet measured
  • Classified as probably not a substantial claim. 41
  • May combine two claims. 82
  • The quote only partly states this claim. 7

  • Probably not a substantial claim: may not pass S1 (asserted), S3 (load-bearing), S4 (based).

    Premisecitation

    In Zea mays callus culture, no variation was observed.

    “No variation observed”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [100] Kaeppler, 1993, Tissue Culture-Induced DNA Methylation Variation in Maize, Proc. Natl. Acad. Sci. USA source

      The Results and Discussion report DNA methylation variation in maize lines derived from tissue culture, including altered bands in regenerant-derived families. The paper says noncultured controls were invariant; its findings do not support an unqualified claim that no variation was observed in cultured maize. (LLM, conf=0.90)

      Checked by a reasoning model — may be wrong.

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Somaclonal variation is a complicated phenomenon, and it remains difficult to fully understand how genetic and epigenetic mechanisms interact within in vitro culture environments.

    “Somaclonal variation is a complicated phenomenon, and it remains difficult to fully understand the ways in which genetic and epigenetic mechanisms interact within in vitro culture environments (Figure 1) [27,28].”
    Quote in the paperNot a substantial claim2 of 2 sources checked
    • cites [27] Leva, A.R., Petruccelli, R., and Rinaldi, L.M.R. (2012). Somaclonal Variation in Tissue Culture: A Case Study with Olive. Recent Advances in Plant In Vitro Culture, InTech. source

      Section 3, “Origin and causes” (page unavailable), says the mechanisms of somaclonal variation remain largely unknown or speculative in perennial fruit crops. Sections 2 and 4 describe genetic and epigenetic changes during in vitro culture, but do not specifically say that how those mechanisms interact is difficult to understand, or extend the uncertainty beyond perennial fruit crops. (LLM, conf=0.82)

      Experimental — accuracy not yet measured
    • cites [28] Duta-Cornescu, G., Constantin, N., Pojoga, D.-M., Nicuta, D., and Simon-Gruita, A. (2023). Somaclonal Variation—Advantage or Disadvantage in Micropropagation of the Medicinal Plants. Int. J. Mol. Sci., 24. source

  • May combine two claims.

    Premisecitation

    Bioreactor-derived strawberry plants showed genetic uniformity and had enhanced anthocyanin content and antioxidant activity compared to conventionally propagated plants.

    “Similarly, confirmed genetic uniformity in bioreactor-derived strawberry (Fragaria × ananassa) plants and correlated clonal fidelity with enhanced anthocyanin content and antioxidant activity compared to conventionally propagated plants [16].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [16] Debnath, 2011, Bioreactors and Molecular Analysis in Berry Crop Micropropagation—A Review, Can. J. Plant Sci. source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Micropropagation has expanded to include various crops, fruit plants, vegetables, trees, medicinal and aromatic plants, and is now a multibillion-dollar industry worldwide.

    “Micropropagation, initially applied to ornamental plants [5], has expanded to include various crops, fruit plants, vegetables, trees, and medicinal and aromatic plants, and is now a multibillion-dollar industry worldwide [6].”
    Quote in the paperNot a substantial claim1 of 2 sources checked
    • cites [5] Abdalla, N., El-Ramady, H., Seliem, M.K., El-Mahrouk, M.E., Taha, N., Bayoumi, Y., Shalaby, T.A., and Dobránszki, J. (2022). An Academic and Technical Overview on Plant Micropropagation Challenges. Horticulturae, 8. source

      The paper discusses micropropagation across diverse plants, including fruit crops, trees, and medicinal plants (References; Section 4.4), and describes its commercial use (General Discussion). It does not give a worldwide market value or say the industry is worth multiple billions of dollars. The separate claim about its initial use in ornamentals is attached to [5], not this source. (LLM, conf=0.84)

      Experimental — accuracy not yet measured
    • cites [6] Bertsouklis, K., Kartsonas, E., and Carra, A. (2024). Seed Germination and Micropropagation of Ornamental Plants. Horticulturae, 10. source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Organogenesis is classified into direct organogenesis, in which shoot buds form directly from explant tissue, and indirect organogenesis, where shoot regeneration occurs through an intermediate callus phase.

    “Organogenesis is generally classified into two distinct pathways: direct organogenesis, in which shoot buds are formed directly from the explant tissue, and indirect organogenesis, where shoot regeneration occurs through an intermediate callus formation phase [9].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [9] Ozyigit, I.I., Dogan, I., Hocaoglu-Ozyigit, A., Yalcin, B., Erdogan, A., Yalcin, I.E., Cabi, E., and Kaya, Y. (2023). Production of Secondary Metabolites Using Tissue Culture-Based Biotechnological Applications. Front. Plant Sci., 14. source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Point mutations alter individual nucleotides within gene coding sequences, which can change the structure and function of encoded proteins.

    “Point mutations alter individual nucleotides within gene coding sequences, which can subsequently change the structure and function of the proteins they encode [45].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [45] Ferreira, M.d.S., Rocha, A.d.J., Nascimento, F.d.S., Oliveira, W.D.d.S., Soares, J.M.d.S., Rebouças, T.A., Morais Lino, L.S., Haddad, F., Ferreira, C.F., and Santos-Serejo, J.A.d. (2023). The Role of Somaclonal Variation in Plant Genetic Improvement: A Systematic Review. Agronomy, 13. source

      Section 3.7 (Molecular Studies; page unavailable) describes somaclonal variation involving changes in DNA base-pair sequences and mentions mutations. Section 4.5 discusses single-nucleotide polymorphisms. Neither passage says that point mutations occur in coding sequences or that they change the structure and function of encoded proteins. (LLM, conf=0.76)

      Experimental — accuracy not yet measured

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Plant tissue culture is an alternative method of conventional vegetative propagation.

    “Thus, plant tissue culture is an alternative method of conventional vegetative propagation [4,5].”
    Quote in the paperNot a substantial claim2 of 2 sources checked
    • cites [4] Chandran, H., Meena, M., Barupal, T., and Sharma, K. (2020). Plant Tissue Culture as a Perpetual Source for Production of Industrially Important Bioactive Compounds. Biotechnol. Rep., 26. source
    • cites [5] Abdalla, N., El-Ramady, H., Seliem, M.K., El-Mahrouk, M.E., Taha, N., Bayoumi, Y., Shalaby, T.A., and Dobránszki, J. (2022). An Academic and Technical Overview on Plant Micropropagation Challenges. Horticulturae, 8. source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    The global demand for high-quality plant material for food and medicine is constantly rising owing to the growing global population.

    “The global demand for high-quality plant material for food and medicine is constantly rising owing to the growing global population [1].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [1] Bahar, 2020, Meeting the Food Security Challenge for Nine Billion People in 2050: What Impact on Forests?, Glob. Environ. Chang. source

      The Introduction (p. 1) says that global demand for food is rising with population growth. It does not establish rising demand for high-quality plant material or for medicinal uses; searches for those terms found no supporting passage in our copy. (LLM, conf=0.88)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Types of explants, number of subcultures, plant growth regulators, and regeneration pathway are responsible for somaclonal variation.

    “The types of explants, the number of subcultures, plant growth regulators, and the regeneration pathway are responsible for somaclonal variation [31][32][33][34].”
    Quote in the paperNot a substantial claim1 of 3 sources checked
    • cites [31] Savita, 2015, An Efficient Somatic Embryogenesis Protocol for Citrus jambhiri and Assessment of Clonal Fidelity of Plantlets Using RAPD Markers, J. Plant Growth Regul. source
    • cites [32] Hussien, 2022, Biometric Measurements and Genetic Instability Assessment of In Vitro Micro-Shoots Culture of Populus alba, Plant Physiol. Rep. source
    • cites [33] Shukla, 2025, Studies on banana for propagation, conservation and genome analysis, Cogent Food Agric. source

      The Results section links subculture cycles and growth regulators to shoot regeneration, not to somaclonal variation. A search for somaclonal variation, genetic stability, explant type, and regeneration pathway found no passage in our copy that links the claimed factors to somaclonal variation; the term appears in a reference title only. Page numbers were not available. (LLM, conf=0.75)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Micropropagation allows rapid multiplication of elite genotypes while preserving desirable traits.

    “Moreover, it allows rapid multiplication of elite genotypes while preserving desirable traits [10].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [10] Debnath, 2012, Morphological and Molecular Analyses in Micropropagated Berry Plants Acclimatized under Ex Vitro Condition, Can. J. Plant Sci. source

  • May combine two claims.

    Premisecitation

    Genetic variation remains stable throughout the sexual cycle or repeated asexual propagation, whereas epigenetic variation may be unstable even during asexual propagation.

    “Genetic variation remains stable throughout the sexual cycle or repeated asexual propagation, whereas epigenetic variation may be unstable even during asexual propagation [29].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [29] Lindner, 2024, Genetic and Epigenetic Differentiation in Response to Genomic Selection for Avian Lay Date, Evol. Appl. source

      The Discussion (page unavailable) says there is limited evidence for stable inheritance of spontaneous epigenetic mutations in vertebrates and describes DNA-methylation reprogramming during fertilization. It does not establish that genetic variation remains stable across sexual cycles or repeated asexual propagation, or that epigenetic variation is unstable during asexual propagation. (LLM, conf=0.78)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Kundu et al. developed a high-fidelity somatic embryogenesis protocol in Vaccinium vitis-idaea; regenerated plants retained genetic uniformity and showed increased flavonoids, anthocyanins, and antioxidant activity compared to donor plants.

    “Kundu et al. developed a high-fidelity somatic embryogenesis protocol in Vaccinium vitis-idaea (lingonberry).This study revealed that the regenerated plants retained genetic uniformity while also showing increased concentrations of flavonoids, anthocyanins, and antioxidant activity in comparison to the original donor plants [17].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [17] Kundu, 2025, Somatic Embryogenesis in Vaccinium vitis-Idaea L.: A High-Fidelity Micropropagation Approach Producing True-to-Type Plants with Enhanced Phytochemical Profiles, Plant Cell Tissue Organ Cult. (PCTOC) source

  • May combine two claims.

    Premisecitation

    In bananas, somaclonal variants significantly increased after the eighth subculture while propagation rates declined.

    “In bananas, for instance, somaclonal variants significantly increased after the eighth subculture while propagation rates declined [75], and similar patterns were noted in callus cultures [76,77].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [75] Rudolf, 2024, Epigenetics and Plant Hormone Dynamics: A Functional and Methodological Perspective, J. Exp. Bot. source

      The cited paper’s Cytokinins section discusses epigenetic regulation of plant development, but the passages retrieved do not address banana somaclonal variants or declining propagation rates. Searches for banana, somaclonal variation, the eighth subculture, and propagation rates found no passage supporting the attributed finding. (LLM, conf=0.75)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    The tissue culture environment influences methylation patterns, frequently causing hypermethylation or hypomethylation in specific genomic regions, which can result in somaclonal variation.

    “The tissue culture environment influences methylation patterns, frequently causing hypermethylation or hypomethylation in specific genomic regions, which can result in somaclonal variation [52].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [52] Fang, 2022, Mechanistic Basis for Maintenance of CHG DNA Methylation in Plants, Nat. Commun. source

      The Results passages describe CHG methylation mechanisms and methylation changes in CMT3 mutant plants, not effects of a tissue-culture environment. Searches for tissue culture, hypermethylation or hypomethylation in that setting, and somaclonal variation found no passage addressing the claimed link. (LLM, conf=0.74)

      Experimental — accuracy not yet measured

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Zhang et al. identified that H3K27me3 regulates approximately 4400 genes in Arabidopsis, independent of small RNAs or DNA methylation pathways.

    “Zhang et al. highlighted the widespread silencing role of H3K27me3, identifying its regulation of approximately 4400 genes in Arabidopsis, independent of small RNAs or DNA methylation pathways [58].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [58] Zhang, X., Clarenz, O., Cokus, S., Bernatavichute, Y.V., Pellegrini, M., Goodrich, J., and Jacobsen, S.E. (2007). Whole-Genome Analysis of Histone H3 Lysine 27 Trimethylation in Arabidopsis. PLoS Biol., 5. source

  • May combine two claims.

    Interpretationcitation

    These interrelated factors dictate the frequency and type of somaclonal variation, emphasizing the need to optimize genotype selection, explant sourcing, culture media, environmental controls, and subculture protocols to minimize variability.

    “These interrelated factors dictate the frequency and type of somaclonal variation, emphasizing the need to carefully optimize genotype selection, explant sourcing, culture media, environmental controls, and subculture protocols to minimize variability in micropropagated plant populations [79,80].”
    Quote in the paperSubstantial claim1 of 2 sources checked
    • cites [79] Pachota, 2022, Medium Composition Affects the Tissue Culture-Induced Variation in Triticale Regenerants, Plant Cell Tissue Organ Cult. (PCTOC) source
    • cites [80] Zhang, D., Wang, Z., Wang, N., Gao, Y., Liu, Y., Wu, Y., Bai, Y., Zhang, Z., Lin, X., and Dong, Y. (2014). Tissue Culture-Induced Heritable Genomic Variation in Rice, and Their Phenotypic Implications. PLoS ONE, 9. source

      Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

      Experimental — accuracy not yet measured

  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationcitation

    Understanding these factors is crucial for commercial micropropagation to reduce somaclonal variation and maintain genetic uniformity.

    “Understanding these factors is crucial for commercial micropropagation to reduce somaclonal variation and maintain genetic uniformity [64,65].”
    Quote in the paperNot a substantial claim1 of 2 sources checked
    • cites [64] Ali, 2025, Noncoding RNA-Mediated Regulation of DNA Methylation: Insights into Plant Epigenetic Mechanisms, J. Plant Growth Regul. source
    • cites [65] Krishna, H., Alizadeh, M., Singh, D., Singh, U., Chauhan, N., Eftekhari, M., and Sadh, R.K. (2016). Somaclonal Variations and Their Applications in Horticultural Crops Improvement. 3 Biotech, 6. source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Small RNA pathways, especially microRNAs (miRNAs) and small interfering RNAs (siRNAs), play a vital role in regulating gene expression at transcriptional and post-transcriptional levels, influencing processes such as cell fate in eukaryotes.

    “Another key epigenetic mechanism involves small RNA pathways, especially microRNAs (miRNAs) and small interfering RNAs (siRNAs), which play a vital role in regulating gene expression at both transcriptional and post-transcriptional levels, influencing essential processes such as cell fate in eukaryotes [59,60].”
    Quote in the paperNot a substantial claim2 of 2 sources checked
    • cites [59] Carlsbecker, 2010, Cell Signalling by MicroRNA165/6 Directs Gene Dose-Dependent Root Cell Fate, Nature source

      The Discussion (page not supplied) describes a pathway integrating transcriptional and post-transcriptional regulation in Arabidopsis root patterning, with miR165/6 regulating a target mRNA. The Xylem patterning requires PHB restriction section (page not supplied) says xylem patterning is primarily mediated by miRNAs, not siRNAs. The paper therefore supports the miRNA-and-cell-fate portion, but not the broader attribution that both miRNAs and siRNAs regulate gene expression at both levels across eukaryotes. (LLM, conf=0.86)

      Experimental — accuracy not yet measured
    • cites [60] Ivey, 2010, MicroRNAs as Regulators of Differentiation and Cell Fate Decisions, Cell Stem Cell source

      Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    In Cannabis sativa, somaclonal variation was more pronounced in meristematic regions compared to differentiated tissues, indicating higher susceptibility of actively dividing cells to in vitro-induced genetic and epigenetic changes.

    “However, Hesami et al. reported that in Cannabis sativa, somaclonal variation was more pronounced in meristematic regions compared to differentiated tissues, indicating a higher susceptibility of actively dividing cells to in vitro-induced genetic and epigenetic changes [72].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [72] Hesami, M., Adamek, K., Pepe, M., and Jones, A.M.P. (2023). Effect of Explant Source on Phenotypic Changes of In Vitro Grown Cannabis Plantlets over Multiple Subcultures. Biology, 12. source

      The Discussion reports that reduced node numbers after repeated subcultures—a possible morphological sign of somaclonal variation—were especially evident in cannabis explants from the middle and apical parts of the mother plant. It does not compare meristematic regions with differentiated tissues or establish that actively dividing cells are more susceptible to genetic and epigenetic changes. The Conclusions say molecular aspects of the variation still need investigation. (LLM, conf=0.88)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    RAPD can sometimes yield inconsistent results and may not be as reproducible as other methods such as AFLP and SSR.

    “Despite its simplicity and low cost, RAPD can sometimes yield inconsistent results and may not be as reproducible as other methods, such as AFLP and SSR [121,122].”
    Quote in the paperNot a substantial claim1 of 2 sources checked
    • cites [121] Hashmi, 1997, RAPD Analysis of Somaclonal Variants Derived from Embryo Callus Cultures of Peach, Plant Cell Rep. source
    • cites [122] Kamle, 2014, Assessment of Genetic Fidelity of Somatic Embryogenesis Regenerated Guava (Psidium guajava L.) Plants Using DNA-Based Markers, N. Zeal. J. Crop Hortic. Sci. source

      The Introduction (page not available) describes RAPD as simple and cost-effective and says SSR markers can be more reliable. It does not compare RAPD with AFLP or explicitly say RAPD yields inconsistent results. The Statistical analysis section says the authors retained only consistently reproducible bands, but does not establish how often RAPD results are inconsistent. (LLM, conf=0.85)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    In Fragaria × ananassa, eugenol content was higher in 'Benihoppe' than 'Xiaobai', likely due to enhanced expression of FaEGS1a.

    “In contrast, the content of eugenol was higher in 'Benihoppe', likely due to enhanced expression of FaEGS1a, highlighting the genetic basis of somaclonal variation in volatile compound profiles and offering potential for improving strawberry quality through genetic manipulation [134].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [134] Zhang, Z., Yu, S., Zhang, Z., Zhang, J., and Li, H. (2023). Comparative Characterization of Fruit Volatiles and Volatile-Related Genes Expression of ‘Benihoppe’ Strawberry and Its Somaclonal Mutant. Plants, 12. source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Deposition of H3K4me3 at the 5' regions of actively transcribed genes is facilitated by trithorax group (trxG) protein complexes in coordination with the initiating form of RNA polymerase.

    “The deposition of H3K4me3 at the 5 ′ regions of actively transcribed genes is facilitated by trithorax group (trxG) protein complexes in coordination with the initiating form of RNA polymerase [56,57].”
    Quote in the paperNot a substantial claim1 of 2 sources checked
    • cites [56] Pikaard, C.S., and Mittelsten Scheid, O. (2014). Epigenetic Regulation in Plants. Cold Spring Harb. Perspect. Biol., 6. source

      Section 2.2.2 (page unavailable) says the TRX-family protein ATX1 can catalyze H3K4 methylation, while section 3.5.3 (page unavailable) identifies H3K4me3 as typical of actively transcribed loci. Neither passage establishes deposition specifically at genes’ 5′ regions or coordination of trxG complexes with initiating RNA polymerase. (LLM, conf=0.86)

      Experimental — accuracy not yet measured
    • cites [57] Schneider, 2002, Active Genes Are Tri-Methylated at K4 of Histone H3, Nature source

  • May combine two claims.

    Premisecitation

    Phenotypic observation is often influenced by environmental factors such as light, temperature, and humidity, which may obscure genetic changes and lead to missed genetic alterations.

    “This method, though widely used, is often influenced by environmental factors, such as light, temperature, and humidity, which may obscure genetic changes and lead to missed genetic alterations [103,104].”
    Quote in the paperSubstantial claim1 of 2 sources checked
    • cites [103] Linacero, R., and Ballesteros, I. (2024). Genetic Basis of Somaclonal Variation. Somaclonal Variation: Basic and Practical Aspects, Springer International Publishing. source
    • cites [104] Noack, 2024, Environmental Impacts of Genetically Modified Crops, Science source

      The Introduction (p. 3) discusses GM crop traits, and the methods discussion (p. 6) concerns confounding when estimating the effects of GM crop adoption. Neither addresses phenotypic observation or whether light, temperature, and humidity can mask genetic alterations; searches for those terms and for environmental effects on phenotypic screening found no relevant passage. (LLM, conf=0.72)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Interpretationcitation

    These findings demonstrate the potential of somaclonal variation and qPCR as effective tools for improving starch content and genetic diversity in potato breeding programs.

    “These findings demonstrate the potential of somaclonal variation and qPCR as effective tools for improving starch content and genetic diversity in potato breeding programs [133].”
    Quote in the paperSubstantial claim1 of 1 sources checked
    • cites [133] Adly, W.M.R.M., Niedbała, G., EL-Denary, M.E., Mohamed, M.A., Piekutowska, M., Wojciechowski, T., Abd El-Salam, E.-S.T., and Fouad, A.S. (2023). Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers. Plants, 12. source

      The Abstract and Conclusions support somaclonal variation as a way to generate genetic variability and potato clones with greater starch accumulation. Materials and Methods §4.4 describes qPCR as a way to measure starch-synthesis gene expression, not as a tool that itself improves starch content or genetic diversity. The Conclusions also say the promising clone still requires genetic characterization before participating effectively in breeding programs. (LLM, conf=0.89)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    In Solanum tuberosum, somaclonal variant Ros 119 showed a 42% increase in fresh tuber weight and a 75% increase in starch content compared to the parent cv Lady Rosetta.

    “Adly et al. [133] used qPCR to analyze starch-synthesis-related genes in the somaclonal variant Ros 119 of Solanum tuberosum, which showed a 42% increase in fresh tuber weight and a 75% increase in starch content compared to the parent cv Lady Rosetta.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [133] Adly, W.M.R.M., Niedbała, G., EL-Denary, M.E., Mohamed, M.A., Piekutowska, M., Wojciechowski, T., Abd El-Salam, E.-S.T., and Fouad, A.S. (2023). Somaclonal Variation for Genetic Improvement of Starch Accumulation in Potato (Solanum tuberosum) Tubers. Plants, 12. source

      Results §2.2 reports that Ros 119 tubers had about 42% higher fresh weight than Lady Rosetta tubers. It also reports a 75% increase in total starch content per plant, but only a 10% increase in starch content measured per unit of tuber dry weight. The citing sentence omits the per-plant qualifier, making the 75% figure ambiguous. (LLM, conf=0.86)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Nutrient imbalances in artificial media can cause cellular stress, affect metabolism, and increase mutation rates.

    “For example, nutrient imbalances in artificial media can cause cellular stress, affect metabolism, and increase mutation rates [73].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [73] Miryeganeh, 2025, Epigenetic Responses of Trees to Environmental Stress in the Context of Climate Change, Biol. Rev. source

      The Introduction glossary identifies nutrient deficit as a plant stressor, and the biotic-stress section discusses experiments with different nutrient levels. Neither passage addresses nutrient imbalances in artificial media or their claimed effects on cellular metabolism and mutation rates; searches for those terms found no supporting passage. Page numbers were not available in our copy. (LLM, conf=0.73)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    SSR markers are highly informative and can detect variations at specific loci, providing precise genetic analysis.

    “SSR markers, also known as microsatellite markers, are highly informative and can detect variations at specific loci, providing precise genetic analysis [127].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [127] Hu, 2024, Genetic Stability Evaluation of Caladium Somaclonal Variants by Morphological, Cytological, and SSR Analysis in Three Successive Generations, Not. Bot. Horti Agrobot. Cluj-Napoca source

      In “Verification of genetic stability using SSR markers in the G3 generation” (page unavailable), five of eight SSR primer pairs detected polymorphisms in caladium plants, supporting the claim that SSR markers can detect genetic variation. The paper does not characterize them as highly informative or establish broadly precise genetic analysis; it cautions that the primer pairs could not provide comprehensive genome information. (LLM, conf=0.84)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    In 21 maize progeny lines from tissue cultures of inbred strain A188, 39% of families had altered methylation patterns, all showing a decrease in methylation.

    “Moreover, a study on 21 maize progeny lines from tissue cultures of inbred strain A188 revealed 39% of families had altered methylation patterns, all showing a decrease in methylation.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [100] Kaeppler, 1993, Tissue Culture-Induced DNA Methylation Variation in Maize, Proc. Natl. Acad. Sci. USA source

  • May combine two claims.

    Premisecitation

    No significant differences were found between proliferation systems for the two hybrids, and no correlation was observed between variant phenotypes and specific MSAP patterns.

    “No significant differences were found between proliferation systems for the two hybrids, and no correlation was observed between variant phenotypes and specific MSAP patterns [94].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [94] Bobadilla Landey, R., Cenci, A., Georget, F., Bertrand, B., Camayo, G., Dechamp, E., Herrera, J.C., Santoni, S., Lashermes, P., and Simpson, J. (2013). High Genetic and Epigenetic Stability in Coffea arabica Plants Derived from Embryogenic Suspensions and Secondary Embryogenesis as Revealed by AFLP, MSAP and the Phenotypic Variation Rate. PLoS ONE, 8. source

  • May combine two claims.

    Premisecitation

    In apple rootstock M9T337, DNA hypomethylation enhances adventitious rooting by upregulating rooting-related genes, while DNA hypermethylation represses rooting-inhibiting genes.

    “It is found that DNA hypomethylation enhances adventitious rooting by upregulating rooting-related genes, while DNA hypermethylation represses rootinginhibiting genes.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [153] Wang, 2023, DNA Methylation Variation Is Crucial to Restore Adventitious Rooting Ability during In Vitro Shoot Culture-induced Rejuvenation in Apple Rootstock, Plant J. source

  • May combine two claims.

    Premisecitation

    Although CRISPR/Cas9 introduces targeted mutations, it supports the maintenance of clonal fidelity by offering precise and controlled gene editing, unlike the random and widespread genetic alterations associated with somaclonal variation.

    “Although CRISPR/Cas9 introduces targeted mutations, it actually supports the maintenance of clonal fidelity by offering precise and controlled gene editing, unlike the random and widespread genetic alterations associated with somaclonal variation [178].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [178] Guo, C., Ma, X., Gao, F., and Guo, Y. (2023). Off-Target Effects in CRISPR/Cas9 Gene Editing. Front. Bioeng. Biotechnol., 11. source

      The Introduction (page unavailable) says CRISPR/Cas9 can cleave DNA at desired genomic positions, supporting the targeted-editing part of the claim. It does not say that this maintains clonal fidelity or compare CRISPR/Cas9 with somaclonal variation. The Introduction also cautions that off-target effects remain a major challenge. (LLM, conf=0.88)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    While not all changes in callus plants are observed in primary regenerants, most methylation alterations in primary regenerants are passed onto subsequent generations.

    “While not all changes in callus plants are observed in primary regenerants, most methylation alterations in primary regenerants are passed onto subsequent generations.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [152] Stelpflug, 2014, Consistent and Heritable Alterations of DNA Methylation Are Induced by Tissue Culture in Maize, Genetics source

      In “Many tissue culture DMRs are heritable” (page unavailable), the paper reports that about 60% of hypomethylated regions in the primary regenerants were detected in both tested offspring, but only 7% of hypermethylated regions were stably inherited. Thus, “most methylation alterations” overstates the result. The section also says most changes observed in regenerants were already present in callus; it does not establish the converse claim that some changes in callus were absent from primary regenerants. (LLM, conf=0.88)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Favoring direct organogenesis over indirect methods minimizes variation and preserves genetic fidelity, as indirect organogenesis typically consists of a callus phase associated with prolonged cell proliferation and extended culture exposure, increasing the risk of genetic instability.

    “Another crucial approach involves favoring direct organogenesis over indirect methods, as indirect organogenesis typically consists of a callus phase associated with prolonged cell proliferation and extended culture exposure, increasing the risk of genetic instability [158].”
    Quote in the paperSubstantial claim1 of 2 sources checked
    • cites [158] Kitimu, S.R., Taylor, J., March, T.J., Tairo, F., Wilkinson, M.J., and Rodríguez López, C.M. (2015). Meristem Micropropagation of Cassava (Manihot esculenta) Evokes Genome-Wide Changes in DNA Methylation. Front. Plant Sci., 6. source

      Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

      Experimental — accuracy not yet measured
    • cites [165] Rajeswari, 2009, Somaclonal Variation in Sugarcane through Tissue Culture and Evaluation for Quantitative and Quality Traits, Euphytica source

  • May combine two claims.

    Premisecitation

    These methylation changes were stably inherited across two generations, suggesting demethylation as a major contributor to tissue culture-induced variation, with certain probes detecting methylation changes more frequently.

    “These changes were stably inherited across two generations, suggesting demethylation as a major contributor to tissue culture-induced variation, with certain probes detecting methylation changes more frequently [100].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [100] Kaeppler, 1993, Tissue Culture-Induced DNA Methylation Variation in Maize, Proc. Natl. Acad. Sci. USA source

  • May combine two claims.

    Premisecitation

    In strawberries' long-term in vitro shoot cultures, RNA sequencing detected increased DNA methylation in specific sequence contexts (CG, CHG, CHH), with changes linked to expression of regeneration-related genes.

    “The results showed increased DNA methylation in specific sequence contexts (CG, CHG, CHH), with changes linked to the expression of regeneration-related genes.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [155] Liu, 2022, The Callus Formation Capacity of Strawberry Leaf Explant Is Modulated by DNA Methylation, Hortic. Res. source

      The Results section on the methylation landscape reports increased overall methylation in strawberry leaf-derived callus, with increases in CG and CHG but a decrease in CHH relative to leaves. The Introduction and Methods describe leaf-to-callus formation studied by whole-genome bisulfite sequencing, not long-term shoot cultures with methylation detected by RNA sequencing. The Abstract and co-analysis Results do link methylation patterns to expression of regeneration-related genes. Page numbers are unavailable in our copy. (LLM, conf=0.90)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    In Vaccinium vitis-idaea, the highest methylation was observed in leaf regenerants (LC1), which also showed the highest levels of secondary metabolites.

    “In Vaccinium vitis-idaea, through MSAP analysis, the highest methylation was observed in leaf regenerants (LC1), which also showed the highest levels of secondary metabolites.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [93] Sikdar, A., Sharma, U., Barua, R., Igamberdiev, A.U., and Debnath, S.C. (2022). Epigenomic Insight of Lingonberry and Health-Promoting Traits during Micropropagation. Sci. Rep., 12. source

      The Abstract reports that MSAP found the highest methylation in leaf regenerants (LC1) and describes them as having the highest secondary metabolites. The Results section, “Portraying the partnerships of cytosine methylation and secondary metabolites,” qualifies that description: LC1 had relatively high phenolic content, but low flavonoid content, the lowest proanthocyanidin content, and antioxidant activity tied with other groups. Thus the claim is supported for methylation but overgeneralizes the metabolite findings. (LLM, conf=0.88)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Sugarcane genotypes were divided into two subpopulations with high differentiation, and methylated fragments were found near CpG islands and regulatory sequences, suggesting their role in stress adaptation.

    “The genotypes were divided into two subpopulations with high differentiation, and methylated fragments were found near CpG islands and regulatory sequences, suggesting their role in stress adaptation [146].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [146] Martins, A.A., da Silva, M.F., and Pinto, L.R. (2020). Epigenetic Diversity of Saccharum Spp. Accessions Assessed by Methylation-Sensitive Amplification Polymorphism (MSAP). 3 Biotech, 10. source

      The Abstract reports two subpopulations and links methylated fragments near CpG islands and putative cis-regulatory sequences to functions associated with stress adaptation. It calls the differentiation index high, but the Structure analysis and Discussion describe the measured 8.6% differentiation as moderate, so the claim overstates the degree of differentiation. (LLM, conf=0.86)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    Micropropagated Vaccinium vitis-idaea plants (NC1, NC2, NC3, LC1) exhibited more methylation than cutting-propagated (ED) plants, but ED plants had higher levels of secondary metabolites, indicating a trade-off between methylation and metabolite production.

    “Micropropagated plants (NC1, NC2, NC3, LC1) exhibited more methylation than cutting-propagated (ED) plants, but ED plants had higher levels of secondary metabolites, indicating a trade-off between methylation and metabolite production [93].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [93] Sikdar, A., Sharma, U., Barua, R., Igamberdiev, A.U., and Debnath, S.C. (2022). Epigenomic Insight of Lingonberry and Health-Promoting Traits during Micropropagation. Sci. Rep., 12. source

  • May combine two claims.

    Premisecitation

    In six sugarcane genotype groups, MSAP analysis of 1341 loci showed 83.29% cytosine methylation, contributing significantly to overall genetic diversity.

    “A total of 1341 MSAP loci were analyzed, with 83.29% showing cytosine methylation, contributing significantly to overall genetic diversity.”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [146] Martins, A.A., da Silva, M.F., and Pinto, L.R. (2020). Epigenetic Diversity of Saccharum Spp. Accessions Assessed by Methylation-Sensitive Amplification Polymorphism (MSAP). 3 Biotech, 10. source

      Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    MSAP analysis identified coding sequences and LTR Gypsy retrotransposons, indicating that epigenetic modifications contribute to somaclonal variation in Allium sativum.

    “MSAP analysis identified coding sequences and LTR Gypsy retrotransposons, indicating that epigenetic modifications contribute to somaclonal variation in Allium sativum [34].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [34] Gimenez, 2016, Assessment of Genetic and Epigenetic Changes in Virus-Free Garlic (Allium sativum L.) Plants Obtained by Meristem Culture Followed by In Vitro Propagation, Plant Cell Rep. source

      The ‘Sequence analysis of MSAP fragments’ section reports differentially methylated fragments matching coding regions and three proteins of the Gypsy LTR retroelement superfamily. It suggests that epigenetic activation of retroelements might be one mechanism by which genetic variability accumulates during in vitro culture; it does not establish that epigenetic modifications contribute to somaclonal variation. (LLM, conf=0.83)

      Experimental — accuracy not yet measured

  • May combine two claims.

    Premisecitation

    In Fragaria nilgerrensis, methylation levels fluctuated throughout the tissue culture process, with non-uniform distribution across different genetic regions.

    “Methylation levels fluctuated throughout the tissue culture process, with non-uniform distribution across different genetic regions [96].”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [96] Cao, Q., Feng, Y., Dai, X., Huang, L., Li, J., Tao, P., Crabbe, M.J.C., Zhang, T., and Qiao, Q. (2021). Dynamic Changes of DNA Methylation During Wild Strawberry (Fragaria nilgerrensis) Tissue Culture. Front. Plant Sci., 12. source

  • May combine two claims.

    Premisecitation

    Adjusting nutrient composition, fine-tuning PGR ratios, and limiting the number of subcultures reduce somaclonal variation, as excessive subculturing increases the chance of genetic and epigenetic alterations, particularly in callus and cell suspension cultures.

    “This involves adjusting the nutrient composition of culture media, fine-tuning the ratios of plant growth regulators (PGRs), and limiting the number of subcultures, as excessive subculturing increases the chance of genetic and epigenetic alterations, particularly in callus and cell suspension cultures [79,106].”
    Quote in the paperSubstantial claim1 of 2 sources checked
    • cites [79] Pachota, 2022, Medium Composition Affects the Tissue Culture-Induced Variation in Triticale Regenerants, Plant Cell Tissue Organ Cult. (PCTOC) source
    • cites [106] Singer, 2021, Genetic Variation and Unintended Risk in the Context of Old and New Breeding Techniques, CRC Crit. Rev. Plant Sci. source

      Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

      Experimental — accuracy not yet measured

  • Probably not a substantial claim: may not pass S1 (asserted), S3 (load-bearing), S4 (based).

    Premisecitation

    In Vaccinium vitis-idaea, more methylation events are observed in in vitro-derived plants than in those derived from cuttings.

    “More methylation events are observed in vitro-derived from cuttings of plants plants than in those derived”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [93] Sikdar, A., Sharma, U., Barua, R., Igamberdiev, A.U., and Debnath, S.C. (2022). Epigenomic Insight of Lingonberry and Health-Promoting Traits during Micropropagation. Sci. Rep., 12. source

  • The quote only partly states this claim.

    Premisecitation

    In Oryza sativa callus culture, variation was observed.

    “Variation observed”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [80] Zhang, D., Wang, Z., Wang, N., Gao, Y., Liu, Y., Wu, Y., Bai, Y., Zhang, Z., Lin, X., and Dong, Y. (2014). Tissue Culture-Induced Heritable Genomic Variation in Rice, and Their Phenotypic Implications. PLoS ONE, 9. source

  • The quote only partly states this claim.

    Premisecitation

    In Manihot esculenta meristem micropropagation, variation was observed.

    “Variation observed”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [158] Kitimu, S.R., Taylor, J., March, T.J., Tairo, F., Wilkinson, M.J., and Rodríguez López, C.M. (2015). Meristem Micropropagation of Cassava (Manihot esculenta) Evokes Genome-Wide Changes in DNA Methylation. Front. Plant Sci., 6. source

  • The quote only partly states this claim.

    Premisecitation

    In Saccharum spp., variation was observed.

    “Variation observed”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [146] Martins, A.A., da Silva, M.F., and Pinto, L.R. (2020). Epigenetic Diversity of Saccharum Spp. Accessions Assessed by Methylation-Sensitive Amplification Polymorphism (MSAP). 3 Biotech, 10. source

  • The quote only partly states this claim.

    Premisecitation

    In Fragaria x ananassa, variation was observed.

    “Variation observed”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [96] Cao, Q., Feng, Y., Dai, X., Huang, L., Li, J., Tao, P., Crabbe, M.J.C., Zhang, T., and Qiao, Q. (2021). Dynamic Changes of DNA Methylation During Wild Strawberry (Fragaria nilgerrensis) Tissue Culture. Front. Plant Sci., 12. source

      The Introduction describes variation arising during plant tissue culture, and the Discussion says the study investigated methylation differences in F. nilgerrensis. The paper does not report observing variation in F. × ananassa, so the species-specific part of the claim is unsupported. (LLM, conf=0.83)

      Experimental — accuracy not yet measured

  • The quote only partly states this claim.

    Premisecitation

    In Malus domestica shoot culture, variation was observed.

    “Variation observed”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [153] Wang, 2023, DNA Methylation Variation Is Crucial to Restore Adventitious Rooting Ability during In Vitro Shoot Culture-induced Rejuvenation in Apple Rootstock, Plant J. source

  • Probably not a substantial claim: may not pass S1 (asserted), S3 (load-bearing), S4 (based).

    Premisecitation

    In Hordeum vulgare micropropagation, no variation was observed.

    “No variation observed”
    Quote in the paperNot a substantial claim1 of 1 sources checked
    • cites [159] Orłowska, R., Machczyńska, J., Oleszczuk, S., and Zimny, J. (2016). DNA Methylation Changes and TE Activity Induced in Tissue Cultures of Barley (Hordeum vulgare L.). J. Biol. Res.-Thessaloniki, 23. source

      The Results report no apparent morphological changes in barley regenerants or their progeny relative to donor plants. But the RP-HPLC Results report increased DNA methylation in regenerants, so the unqualified claim that no variation was observed is too broad. Our copy provides section labels but no page numbers for these passages. (LLM, conf=0.88)

      Experimental — accuracy not yet measured

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Plants can regenerate via organogenesis and somatic embryogenesis in micropropagation.

    “In the micropropagation process, plants can regenerate via organogenesis and somatic embryogenesis (SE) [8].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [8] George, 2008, Plant Propagation by Tissue Culture, Plant Cell Tiss Organ Cult source

  • May combine two claims.

    Premisecitation

    Regenerated plants may display undesirable phenotypic variations including sterility, precocious flowering, altered internodal length, leaf abnormalities such as albino or chlorotic leaves, increased salt resistance, and changes in fruit or flower color.

    “These regenerated plants may display a range of undesirable phenotypic variations, including sterility, precocious flowering, altered internodal length, leaf abnormalities such as albino or chlorotic leaves, increased salt resistance, and changes in fruit or flower color [21].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [21] Mohapatra, P., Ray, A., and Jena, S. (2022). Evaluation of Genetic Stability of In Vitro Raised Orchids Using Molecular-Based Markers. Commercial Scale Tissue Culture for Horticulture and Plantation Crops, Springer Nature. source

  • May combine two claims.

    Premisecitation

    Somaclonal variation is unpredictable and uncontrollable.

    “Somaclonal variation is unpredictable and uncontrollable, and most of the variation has no direct agronomic or commercial significance [26].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [26] Bairu, 2011, Somaclonal Variation in Plants: Causes and Detection Methods, Plant Growth Regul. source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Growers must invest heavily in advanced disease and pest management systems to manage these risks.

    “To manage these risks, growers must invest heavily in advanced disease and pest management systems [22].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [22] Dorani, E., Dehghanian, Z., Gougerdchi, V., and Hamedpour-Darabi, M. (2024). Application of Somaclonal Variation in Crop Improvements. Plant Mutagenesis, Springer. source

  • Probably not a substantial claim: may not pass S3 (load-bearing), S4 (based).

    Premisenone given

    Somaclonal variations can be detected by phenotypic assessment, cytogenetic, DNA-based molecular markers, bisulfite sequencing, and RNA sequencing.

    “Somaclonal variations can be detected by phenotypic assessment, cytogenetic, DNA-based molecular markers, bisulfite sequencing, and RNA sequencing.”
    Quote in the paperNot a substantial claim

  • Classified as probably not a substantial claim.

    Premisecitation

    Clonal fidelity-the capacity of a clone to maintain its genetic identity over time-is vital in in vitro propagation because success depends on producing large numbers of genetically identical, true-to-type plants from a small segment of a donor plant.

    “Clonal fidelity-the capacity of a clone to maintain its genetic identity over time-is vital in in vitro propagation because the success of this process depends on producing large numbers of genetically identical, true-to-type plants from a small segment of a donor plant [14].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [14] Debnath, 2012, Molecular Markers for Genetic Fidelity During In Vitro Propagation of Horticultural Crops, Acta Hortic. source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Interpretationreasoning

    Uniformity simplifies cultivation, reduces production costs, and enhances market appeal.

    “This uniformity simplifies cultivation, reduces production costs, and enhances market appeal.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S4 (based).

    Premisenone given

    The success of commercial micropropagation necessitates genetic stability among regenerated plants.

    “The success of commercial micropropagation necessitates genetic stability among regenerated plants.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Commercial micropropagation experienced significant growth between the 1970s and 1980s due to the rise in commercial laboratories.

    “Between the 1970s and 1980s, the commercial micropropagation process experienced significant growth due to the rise in commercial laboratories involved in these activities [12].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [12] Yancheva, S., and Kondakova, V. (2018). Plant Tissue Culture Technology: Present and Future Development. Bioprocessing of Plant In Vitro Systems, Springer. source

  • Classified as probably not a substantial claim.

    Interpretationreasoning

    Genetically identical individuals ensure uniformity in yield, growth, and quality, which is essential for commercial consistency.

    “The genetically identical individuals ensure uniformity in yield, growth, and quality, which is essential for commercial consistency.”
    Quote in the paperSubstantial claim

  • May combine two claims.

    Premisecitation

    In lily, chromosomal variation was induced during prolonged callus culture on MS medium with 1 mg/L picloram; extended exposure to auxin led to polyploidization, resulting in tetraploid plantlets.

    “In lily, chromosomal variation was induced during prolonged callus culture on MS medium with 1 mg/L picloram.The extended exposure to auxin led to polyploidization, resulting in tetraploid plantlets.Lily [48], demonstrating the prevalence and importance of these genetic mechanisms in plant tissue culture systems.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [48] Sangthong, 2005, Characteristics of The Tetraploid Plant Derived as A Somaclonal Variation in Lilium longiflorum, Acta Hortic. source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Micropropagation is a rapid and efficient method that can be achieved in limited space.

    “Tissue-based propagation, commonly known as micropropagation, is a rapid and efficient method that can be achieved in limited space [7].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [7] Bettoni, J.C., Wang, M.-R., and Wang, Q.-C. (2024). In Vitro Regeneration, Micropropagation and Germplasm Conservation of Horticultural Plants. Horticulturae, 10. source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    Micropropagation has noticeably increased mass production of genetically uniform and high-quality plant materials, contributing significantly to agriculture, horticulture, and forestry.

    “Consequently, micropropagation has noticeably increased the mass production of genetically uniform and high-quality plant materials, contributing significantly to agriculture, horticulture, and forestry.”
    Quote in the paperNot a substantial claim

  • May combine two claims.

    Interpretationreasoning

    Genetic instability can increase vulnerability to insect pests, pathogens, and environmental stresses, significantly reducing crop productivity and increasing disease outbreaks.

    “This genetic instability can increase vulnerability to insect pests, pathogens, and environmental stresses, significantly reducing crop productivity and increasing disease outbreaks.”
    Quote in the paperSubstantial claim

  • May combine two claims.

    Premisecitation

    Conventional plant propagation methods often fail to fulfill current and expected demands of efficient and cost-effective plant propagation systems due to insufficient agricultural land, long time to obtain progenies, dependence on seasons, and limitations in consistency.

    “These methods often fail to fulfill the current and expected demands of efficient and cost-effective plant propagation systems due to insufficient agricultural land, requiring a long time to obtain progenies, dependence on seasons, and limitations in the consistency of the resulting plant material [3].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [3] Lasley, 1994, The limitation of conventional breeding programs and the need and promise of assisted 548 reproduction in nondomestic species, Theriogenology source

  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationreasoning

    Developing and maintaining optimized, tightly controlled culture protocols is necessary to safeguard genetic integrity and clonal uniformity.

    “Consequently, the degree of somaclonal variation is closely associated with the specific conditions of the in vitro environment, emphasizing the necessity of developing and maintaining optimized, tightly controlled culture protocols to safeguard genetic integrity and clonal uniformity.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S2 (checkable). May combine two claims.

    Interpretationreasoning

    Understanding somaclonal variation is essential for optimizing micropropagation protocols and producing true-to-type plants.

    “Understanding somaclonal variation is essential for optimizing micropropagation protocols and producing true-to-type plants.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisenone given

    Numerous techniques exist for determining and defining somaclonal variants, primarily based on morphological features, numerical and structural variations in chromosomes, and biochemical and molecular DNA markers.

    “There are numerous techniques for determining and defining somaclonal variants, primarily based on various morphological features, numerical and structural variations in the chromosomes, and biochemical and molecular DNA markers.”
    Quote in the paperNot a substantial claim

  • May combine two claims.

    Premisenone given

    ISSR markers amplify regions between microsatellites and offer a powerful method for detecting genetic variations.

    “ISSR markers amplify regions between microsatellites and offer a powerful method for detecting genetic variations.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    RFLP detects polymorphisms in DNA by analyzing changes in the length of restriction enzyme-digested fragments, providing high-resolution detection of mutations.

    “RFLP detects polymorphisms in DNA by analyzing changes in the length of restriction enzyme-digested fragments, providing high-resolution detection of mutations [117].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [117] Biswas, P., and Kumar, N. (2023). Application of Molecular Markers for the Assessment of Genetic Fidelity of In Vitro Raised Plants: Current Status and Future Prospects. Molecular Marker Techniques, Springer Nature. source

  • May combine two claims.

    Premisenone given

    Selecting somaclonal variants early and excluding undesirable traits are crucial challenges in successful commercial micropropagation.

    “Selecting somaclonal variants early and excluding undesirable traits are crucial challenges in successful commercial micropropagation (Table 2).”
    Quote in the paperSubstantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisenone given

    Techniques such as RFLP, RAPD, AFLP, ISSR, SSR, and SCoT markers are widely employed to detect somaclonal variations.

    “Techniques such as RFLP (restriction fragment length polymorphism), RAPD (random amplified polymorphic DNA), AFLP (amplified fragment length polymorphism), ISSR (inter-simple sequence repeat), SSR (simple sequence repeat), and SCoT (Start Codon Targeted) markers are widely employed to detect somaclonal variations.”
    Quote in the paperNot a substantial claim

  • May combine two claims.

    Premisecitation

    Plantlets regenerated from nucellar tissues showed no variation, while those raised from ovaries showed variation in 20-30%.

    “Plantlets regenerated from nucellar tissues showed no variation, while those raised from ovaries showed variation in 20-30%.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [31] Savita, 2015, An Efficient Somatic Embryogenesis Protocol for Citrus jambhiri and Assessment of Clonal Fidelity of Plantlets Using RAPD Markers, J. Plant Growth Regul. source

  • May combine two claims.

    Premisecitation

    In micropropagated strawberries, miR156 is notably upregulated, which facilitates juvenile leaf development and regulates developmental transitions.

    “For example, in micropropagated strawberries, miR156 is notably upregulated, which facilitates juvenile leaf development and regulates developmental transitions [61].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [61] Li, 2012, Tissue Culture Responsive MicroRNAs in Strawberry, Plant Mol. Biol. Rep. source

  • May combine two claims.

    Premisereasoning

    Media composition, hormonal imbalances, culture cycles, and physical or chemical stressors collectively contribute to somaclonal variation.

    “Factors such as media composition, hormonal imbalances, culture cycles, and physical or chemical stressors collectively contribute to this.”
    Quote in the paperSubstantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisenone given

    Two prominent histone H3 methylation marks, H3K4me3 and H3K27me3, have opposing roles in gene regulation: H3K4me3 is linked to transcriptional activation, while H3K27me3 is associated with gene repression.

    “Two prominent histone H3 methylation marks, H3K4me3 and H3K27me3, are well-characterized for their opposing roles in gene regulation-H3K4me3 is linked to transcriptional activation, while H3K27me3 is associated with gene repression.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisereasoning

    Histone modifications play a significant role in regulating gene expression.

    “In addition to DNA methylation, histone modifications also play a significant role in regulating gene expression.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisenone given

    Three major types of epigenetic changes have been identified: DNA methylation, histone modifications, and small RNA-mediated regulation.

    “Three major types of epigenetic changes have been identified: DNA methylation, histone modifications, and small RNA-mediated regulation.”
    Quote in the paperNot a substantial claim

  • May combine two claims.

    Premisecitation

    Isozyme analysis has been used for detecting somaclonal variation; changes in isozyme activity can reflect genetic variation.

    “Isozyme analysis has been another approach for detecting somaclonal variation.Isozymes are distinct forms of enzymes that regulate various metabolic activities, and changes in their activity can reflect genetic variation in the plant [111,113].”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [111] Jena, 2018, High-Frequency Clonal Propagation of Curcuma Angustifolia Ensuring Genetic Fidelity of Micropropagated Plants, Plant Cell Tissue Organ Cult. (PCTOC) source
    • cites [113] Sandoval, 1995, Distribution of Endogenous Gibberellins in Dwarf and Giant Off-Types Banana (Musa AAA, Cv.Grand Nain) Plants from In Vitro Propagation, Plant Growth Regul. source

  • May combine two claims.

    Premisecitation

    In vitro conditions can regulate epigenetic modifications in plant tissue culture systems, which influence plant phenotype and contribute to somaclonal variation.

    “In vitro conditions can regulate these epigenetic modifications in plant tissue culture systems, which profoundly influence plant phenotype and contribute to somaclonal variation [50].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [50] Lu, 2024, Recent Progress of Molecular Mechanisms of DNA Methylation in Plant Response to Abiotic Stress, Environ. Exp. Bot. source

  • May combine two claims.

    Premisecitation

    RAPD is a more straightforward and affordable method that uses random primers to amplify DNA, quickly identifying somaclonal variation.

    “RAPD is a more straightforward and affordable method that uses random primers to amplify DNA, quickly identifying somaclonal variation [120].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [120] Viloria, 2008, Analysis of Genetic Variability in Various Tissue Culture-Derived Lemon Plant Populations Using RAPD and Flow Cytometry, Euphytica source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    AFLP involves DNA digestion with restriction enzymes, ligation of adapters, PCR amplification, and gel electrophoresis; it provides a detailed genetic fingerprint and can detect variations from mutations in restriction enzyme recognition sites.

    “AFLP is another widely used technique that involves DNA digestion with restriction enzymes, ligation of adapters, PCR amplification, and gel electrophoresis.This method provides a detailed genetic fingerprint and can detect variations arising from mutations in restriction enzyme recognition sites [123].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [123] Martín, C., and González-Benito, M.E. (2024). Molecular Markers for the Detection and Analysis of Somaclonal Variation. Somaclonal Variation: Basic and Practical Aspects, Springer International Publishing. source

  • May combine two claims.

    Premisecitation

    In micropropagated plants, miR169a and miR169b are downregulated, whereas miR535 and miR390 are upregulated.

    “Other studies have found that miR169a and miR169b are downregulated, whereas miR535 and miR390 are upregulated in micropropagated plants [62].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [62] Zhang, 2014, Epigenetic and Genetic Variation in Micro-Propagated Strawberry Plants, Acta Hortic. source

  • May combine two claims.

    Premisecitation

    Molecular markers offer greater precision and reliability, helping identify subtle genetic variations that may go unnoticed by phenotypic or cytogenetic methods.

    “These markers offer greater precision and reliability, helping to identify even subtle genetic variations that may go unnoticed by phenotypic or cytogenetic methods [116].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [116] Mandal, 2001, Isoenzyme Markers in Varietal Identification of Banana, Vitr. Cell. Dev. Biol.-Plant source

  • May combine two claims.

    Premisecitation

    Flow cytometry allows precise counting of chromosomes and determination of ploidy and nuclear DNA content, providing a more sensitive, rapid, and reliable approach to detecting genetic variation.

    “This method allows for precisely counting chromosomes and determining ploidy and nuclear DNA content, providing a more sensitive, rapid, and reliable approach to detecting genetic variation [109].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [109] Pellicer, J., Powell, R.F., and Leitch, I.J. (2021). The Application of Flow Cytometry for Estimating Genome Size, Ploidy Level Endopolyploidy, and Reproductive Modes in Plants. Molecular Plant Taxonomy, Humana. source

  • May combine two claims.

    Premisecitation

    Gibberellic acid has been shown to affect somaclonal variation in crops like bananas, making it a valuable marker for early detection.

    “Gibberellic acid, known for its role in plant growth regulation, has been shown to affect somaclonal variation in crops like bananas, making it a valuable marker for early detection [113].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [113] Sandoval, 1995, Distribution of Endogenous Gibberellins in Dwarf and Giant Off-Types Banana (Musa AAA, Cv.Grand Nain) Plants from In Vitro Propagation, Plant Growth Regul. source

  • May combine two claims.

    Premisenone given

    SCoT markers target conserved regions near the start codon and offer a cost-effective and efficient way to detect genetic consistency.

    “SCoT (Start Codon Targeted) markers, which target conserved regions near the start codon, offer a cost-effective and efficient way to detect genetic consistency.”
    Quote in the paperNot a substantial claim

  • May combine two claims.

    Premisecitation

    In Artemisia annua, somaclonal variant ASV12 produced significantly more artemisinin than the wild type, with an even greater increase when cultivated in saline soils.

    “Among these variants, ASV12 was found to produce significantly more artemisinin than the wild type, with an even greater increase when cultivated in saline soils [132].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [132] Pandey, 2016, In vitro generation of high artemisinin yielding salt tolerant somaclonal variant and development of SCAR marker in Artemisia annua L, Plant Cell Tiss. Organ Cult. (PCTOC) source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    SCoT PCR amplification uses a single 18-mer primer to target the highly conserved region flanking the start codon ATG in plants.

    “The PCR amplification uses a single 18-mer primer to target the highly conserved region flanking the start codon ATG in plants [7].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [7] Bettoni, J.C., Wang, M.-R., and Wang, Q.-C. (2024). In Vitro Regeneration, Micropropagation and Germplasm Conservation of Horticultural Plants. Horticulturae, 10. source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    In plants, HATs are organized into five structural subgroups, while HDACs are mainly grouped as HDA1 and HDA6; HDA6 is crucial for maintaining DNA methylation, suppressing transposable elements, and guiding development.

    “In plants, HATs are organized into five structural subgroups, while HDACs are mainly grouped as HDA1 and HDA6-the latter being crucial for maintaining DNA methylation, suppressing transposable elements, and guiding development [55].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [55] Berr, 2011, Histone Modifications in Transcriptional Activation during Plant Development, Biochim. Biophys. Acta (BBA)—Gene Regul. Mech. source

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    DNA methylation involves covalent attachment of methyl groups to cytosine nucleotides, primarily resulting in 5-methylcytosine (5mC), N6-methyladenine (6mA), and N4-methylcytosine (4mC).

    “DNA methylation involves the covalent attachment of methyl groups to cytosine nucleotides, primarily resulting in three types of methylated bases: 5-methylcytosine (5 mC), N6-methyladenine (6 mA), and N4-methylcytosine (4 mC) [51].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [51] Liu, 2024, The Involvement of DNA Methylation in Plant Growth Regulators-Mediated Growth in Tomato (Solanum lycopersicum) Seedlings, J. Plant Growth Regul. source

  • May combine two claims.

    Premisecitation

    In Vanilla planifolia, transverse sectioning of shoot apex improved shoot production up to 32.77 shoots/section in 6 months, with no genetic variation in plants from transverse sections.

    “Transverse sectioning of the shoot apex improved shoot transverse sections. variation in plants from production (up to 6 months), with no genetic 32.77 shoots/section in”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [91] 2015, Indirect Organogenesis and Assessment of Somaclonal Variation in Plantlets of Vanilla planifolia Jacks, Plant Cell Tissue Organ Cult. (PCTOC) source

  • May combine two claims.

    Premisecitation

    In Camellia sinensis, DNA methylation levels varied across tissues, cultivars, and growth stages; higher methylation was observed in tender leaves (38.34%) and pistils (38.19%), while lower levels were found in capillary roots (19.45%), stamens (19.61%), and old leaves (20.70%).

    “Higher methylation levels were observed in tender leaves (38.34%) and pistils (38.19%), while lower levels were found in capillary roots (19.45%), stamens (19.61%), and old leaves (20.70%).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [148] Gao, 2019, DNA Methylation Levels in Different Tissues in Tea Plant via an Optimized HPLC Method, Hortic. Environ. Biotechnol. source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    This cost-effective and efficient ChIP protocol has been successfully applied to Arabidopsis thaliana and can be adapted to other systems for epigenetic research.

    “This cost-effective and efficient protocol has been successfully applied to Arabidopsis thaliana and can be adapted to other systems for epigenetic research [150].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [150] Saleh, 2008, An Efficient Chromatin Immunoprecipitation (ChIP) Protocol for Studying Histone Modifications in Arabidopsis Plants, Nat. Protoc. source

  • May combine two claims.

    Premisecitation

    In Camellia sinensis, DNA methylation levels in adventitious buds decreased as pruning intensity increased, suggesting a link between methylation and tea plant development.

    “Additionally, DNA methylation levels in adventitious buds decreased as pruning intensity increased, suggesting a link between methylation and tea plant development [148].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [148] Gao, 2019, DNA Methylation Levels in Different Tissues in Tea Plant via an Optimized HPLC Method, Hortic. Environ. Biotechnol. source

  • May combine two claims.

    Interpretationreasoning

    Key factors contributing to somaclonal variation include composition of culture medium, ratio and type of PGRs, explant source, frequency and type of subcultures, as well as environmental conditions such as light intensity and temperature.

    “Key factors contributing to this variation include the composition of the culture medium, the ratio and type of plant growth regulators (PGRs), explant source, frequency and type of subcultures, as well as environmental conditions such as light intensity and temperature.”
    Quote in the paperSubstantial claim

  • Probably not a substantial claim: may not pass S2 (checkable), S3 (load-bearing), S4 (based). May combine two claims.

    Premisenone given

    Numerous studies are being conducted on somaclonal variations during tissue culture, but a comprehensive understanding remains elusive.

    “Numerous studies are being conducted on somaclonal variations during tissue culture, but a comprehensive understanding remains elusive.”
    Quote in the paperNot a substantial claim

  • May combine two claims. The quote only partly states this claim.

    Premisecitation

    In Citrus mitis, 4-CPPU, PBU, and 2,3-MDPU enhanced embryogenic potential, with 2,3-MDPU and PBU causing 3.7% somaclonal variation, while BAP/HF medium showed no variability.

    “(4-CPPU, PBU, 2,3-MDPU) enhanced embryogenic BAP/HF medium showed somaclonal variation, while potential, with 2,3-MDPU and PBU causing 3.7%”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [70] Siragusa, 2007, Genetic Instability in Calamondin (Citrus madurensis Lour.) Plants Derived from Somatic Embryogenesis Induced by Diphenylurea Derivatives, Plant Cell Rep. source

  • May combine two claims.

    Interpretationreasoning

    These molecular and biochemical techniques collectively provide powerful tools for assessing epigenetic variation in tissue-cultured plants, contributing to a better understanding of somaclonal variation and ensuring the epigenetic fidelity of regenerants.

    “These molecular and biochemical techniques collectively provide powerful tools for assessing epigenetic variation in tissue-cultured plants, contributing to a better understanding of somaclonal variation and ensuring the epigenetic fidelity of regenerants.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Molecular markers accurately detect genetic and epigenetic variation.

  • May combine two claims.

    Interpretationreasoning

    Somaclonal variation is significantly influenced by micropropagation techniques, with direct organogenesis generally producing more genetically stable plants compared to indirect organogenesis.

    “Somaclonal variation is significantly influenced by micropropagation techniques, with direct organogenesis generally producing more genetically stable plants compared to indirect organogenesis.”
    Quote in the paperNot a substantial claim

  • Probably not a substantial claim: may not pass S2 (checkable). May combine two claims.

    Interpretationreasoning

    Together, these complementary strategies provide a comprehensive framework for minimizing somaclonal variation and enhancing the reliability of plant micropropagation systems.

    “Together, these complementary strategies provide a comprehensive framework for minimizing somaclonal variation and enhancing the reliability of plant micropropagation systems.”
    Quote in the paperNot a substantial claim
    • Rests on an assumption: Commercial micropropagation requires clonal fidelity.

  • May combine two claims.

    Premisecitation

    Cryopreservation reduces maintenance time and costs and minimizes the accumulation of somaclonal variation or contamination risks over time.

    “This technique reduces maintenance time and costs and minimizes the accumulation of somaclonal variation or contamination risks over time [166].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [166] Kessel-Domini, A., Pérez-Brito, D., Guzmán-Antonio, A., Barredo-Pool, F.A., Mijangos-Cortés, J.O., Iglesias-Andreu, L.G., Cortés-Velázquez, A., Canto-Flick, A., Avilés-Viñas, S.A., and Rodríguez-Llanes, Y. (2022). Indirect Somatic Embryogenesis: An Efficient and Genetically Reliable Clonal Propagation System for Ananas comosus L. Merr. Hybrid “MD2.”. Agriculture, 12. source

  • May combine two claims.

    Interpretationcitation

    Modifications in culture medium affect both DNA sequence changes and methylation, offering a way to control the level of variation in tissue culture-derived regenerants.

    “The findings suggest that modifications in the culture medium affect both DNA sequence changes and methylation, offering a way to control the level of variation in tissue culture-derived regenerants [79].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [79] Pachota, 2022, Medium Composition Affects the Tissue Culture-Induced Variation in Triticale Regenerants, Plant Cell Tissue Organ Cult. (PCTOC) source

  • May combine two claims.

    Premisecitation

    Various molecular markers such as RAPD, ISSR, AFLP, SSR, and SNPs have been successfully applied for screening and identifying somaclonal variants in different plant species, allowing for maintenance of genetic uniformity and selection of true-to-type regenerants.

    “Various molecular markers such as RAPD, ISSR, AFLP, SSR, and SNPs have been successfully applied for screening and identifying somaclonal variants in different plant species [11,26], allowing for the maintenance of genetic uniformity and selection of true-to-type regenerants.”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites [11] Taji, A., Kumar, P., and Lakshmanan, P. (2024). In Vitro Plant Breeding, CRC Press. source
    • cites [26] Bairu, 2011, Somaclonal Variation in Plants: Causes and Detection Methods, Plant Growth Regul. source

  • May combine two claims.

    Premisecitation

    In Aloe vera, direct regeneration from axillary buds showed 0% polymorphism, while indirect regeneration via callus from inflorescence base exhibited 80% polymorphism.

    “axillary buds showed 0% polymorphism (true to type), inflorescence base exhibited via callus from the while indirect regeneration”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [84] Rathore, 2011, Assessment of Genetic Stability and Instability of Tissue Culture-Propagated Plantlets of Aloe vera L. by RAPD and ISSR Markers, Appl. Biochem. Biotechnol. source

  • May combine two claims.

    Premisecitation

    In Uncaria guianensis, the RITA system has been identified as the most effective bioreactor design; these micropropagation systems ensure efficient propagation and genome stability.

    “For example, in Uncaria guianensis, the RITA (Recipient for Automated Temporary Immersion) system has been identified as the most effective bioreactor design.These micropropagation systems ensure efficient propagation and genome stability in Uncaria guianensis [164].”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [164] Gomes, 2025, Integrated Seed Cryopreservation, Bioreactor and Conventional Micropropagation, and Genetic Stability Assessment by Flow Cytometry of Uncaria guianensis (Aubl.) J.F.Gmel, a High-Value Amazonian Medicinal Plant, Plant Cell Tissue Organ Cult. (PCTOC) source

  • May combine two claims. The quote only partly states this claim.

    Premisecitation

    In winter triticale, Cu2+ and Ag+ ions and incubation time affected tissue culture-induced variation and genetic homogeneity, with 51% variation including 43% sequence variation, 5% demethylation, and 3% de novo methylation using metAFLP.

    “These results showed a 51% variation, including 43% sequence variation, 5% demethylation, and 3% de novo methylation using metAFLP.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [79] Pachota, 2022, Medium Composition Affects the Tissue Culture-Induced Variation in Triticale Regenerants, Plant Cell Tissue Organ Cult. (PCTOC) source

  • May combine two claims.

    Premisecitation

    In X Triticosecale spp., 51% tissue culture-induced variation was observed, and variation was influenced by culture medium composition.

    “51% tissue culture-induced culture medium composition. variation was observed, and variation was influenced by”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [79] Pachota, 2022, Medium Composition Affects the Tissue Culture-Induced Variation in Triticale Regenerants, Plant Cell Tissue Organ Cult. (PCTOC) source

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    In Arabidopsis, a ChIP method including nuclear isolation before chromatin shearing improved DNA yield (15 g from 0.2-0.4g of tissue), sufficient for analyzing 25 or more genes.

    “In Arabidopsis, this method includes a nuclear isolation step before chromatin shearing, improving DNA yield (15 g from 0.2-0.4g of tissue), sufficient for analyzing 25 or more genes.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [150] Saleh, 2008, An Efficient Chromatin Immunoprecipitation (ChIP) Protocol for Studying Histone Modifications in Arabidopsis Plants, Nat. Protoc. source

  • Classified as probably not a substantial claim. May combine two claims.

    Interpretationnone given

    A few somaclonal variants are used as a new agronomic trait in crop improvement; at the same time, it is also a crucial problem in micropropagated plants.

    “However, a few somaclonal variants are used as a new agronomic trait in crop improvement; at the same time, it is also a crucial problem in micropropagated plants.”
    Quote in the paperSubstantial claim
    • Rests on an assumption: Somaclonal variation is undesirable in clonal propagation.

  • May combine two claims.

    Interpretationcitation

    These findings indicate that tissue culture promotes greater methylation events, suggesting that DNA methylation may play a role in regulating plant growth and development under different propagation methods.

    “These findings indicate that tissue culture promotes greater methylation events, suggesting that DNA methylation may play a role in regulating plant growth and development under different propagation methods [95].”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [95] Goyali, 2018, DNA Methylation in Lowbush Blueberry (Vaccinium angustifolium Ait.) Propagated by Softwood Cutting and Tissue Culture, Can. J. Plant Sci. source

  • May combine two claims.

    Premisecitation

    In Cymbidium aloifolium, in vitro-derived plantlets showed 86.87% genetic monomorphism and 13.13% polymorphism.

    “The analysis of the in vitro-derived plantlets 13.13% polymorphism. showed 86.87% genetic monomorphism and”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [143] Monica, 2024, Exogenous Application of Chitosan, a Potent Biotic Elicitor Enhances Micropropagation Efficiency of Cymbidium aloifolium (L.) Sw., an Orchid of Medicinal and Horticultural Importance, Vegetos source

  • May combine two claims.

    Premisecitation

    In Dendrocalamus asper, methylation decreased with subculturing, linked to somaclonal variation.

    “Methylation decreased with subculturing, linked to somaclonal variation”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [99] Himmen, 2023, Micropropagation, Estimation of DNA Methylation during Multiplication Cycles and Mycorrhization of Seed-Derived Dendrocalamus asper (Schultes f.) Backer Ex Heyne, Plant Cell Tissue Organ Cult. (PCTOC) source

  • Probably not a substantial claim: may not pass S1 (asserted), S3 (load-bearing), S4 (based).

    Premisecitation

    In Vaccinium angustifolium, variation was observed.

    “Variation observed”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [95] Goyali, 2018, DNA Methylation in Lowbush Blueberry (Vaccinium angustifolium Ait.) Propagated by Softwood Cutting and Tissue Culture, Can. J. Plant Sci. source

  • Probably not a substantial claim: may not pass S1 (asserted), S3 (load-bearing), S4 (based).

    Premisecitation

    In Curcuma angustifolia, no variation was observed.

    “No variation observed.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [124] Sahoo, 2021, EST-SSR Marker-Based Genetic Diversity and Population Structure Analysis of Indian Curcuma Species: Significance for Conservation, Braz. J. Bot. source
114 of 114

  • The paper relies on this without support.

    Somaclonal variation is undesirable in clonal propagation.

    “However, somaclonal variation is generally considered undesirable in clonal propagation.”

  • The paper relies on this without support.

    Somaclonal variation causes economic loss in commercial micropropagation.

    “To optimize economic loss in commercial micropropagation, it is essential to identify and eradicate variants at the very early stages of their growth.”

  • The paper relies on this without support.

    Commercial micropropagation requires clonal fidelity.

    “Combined with traditional methods, these tools provide a comprehensive approach to enhancing clonal fidelity and ensuring the success of commercial micropropagation [129,131].”

  • The paper relies on this without support.

    Molecular markers accurately detect genetic and epigenetic variation.

    “The application of these molecular techniques has become increasingly essential in the micropropagation process, enabling early detection and precise elimination of somaclonal variants.”

  • The paper relies on this without support.

    The cited studies' findings are generalizable to commercial micropropagation.

    “These molecular and biochemical techniques collectively provide powerful tools for assessing epigenetic variation in tissue-cultured plants, contributing to a better understanding of somaclonal variation and ensuring the epigenetic fidelity of regenerants.”
5 of 5

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Maize methylation variation is both reported and denied

    Major

    The text says 39% of maize progeny families had altered methylation patterns, citing [100]. Table 3 cites [100] for maize but says no variation was observed.

  • Strawberry species differs between the text and tables

    Minor

    The account of study [96] identifies the tissue-cultured species as Fragaria nilgerrensis, whereas Table 3 identifies the species for [96] as Fragaria x ananassa.

  • Guava bands are described as both entirely and approximately 99% monomorphic

    Minor

    The prose reports no polymorphism among the guava bands, but Table 2 reports approximately 99% monomorphic bands for the same study [122].

  • Vanilla genetic uniformity conflicts with reported polymorphism

    Minor

    Table 1's vanilla entry says there was no genetic variation, while Table 2 reports 71.66% genetic polymorphism for vanilla plantlets, with both entries citing [91].

  • Magnolia SSR results conflict on whether variation occurred

    Minor

    The prose says no variation was observed in Magnolia dealbata using SSR markers. Table 2 instead reports 90% genetic integrity for Magnolia using SSR, with both statements citing [87].

5 of 5

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1 of the 180 references couldn’t be matched to a known paper.

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Related

Authors
Majumder, S., Igamberdiev, A. U., & Debnath, S. C.
Affiliations
  • Memorial University of Newfoundland (CA)
  • Agriculture and Agri-Food Canada (CA)
Corresponding author
Debnath, Samir C.
ORCID
Venue
Agronomy
Publisher
MDPI AG
Published
2025-06-19
Volume
15
Issue
6
Pages
1489
ISSN
2073-4395 (ISSN-L)
DOI
10.3390/agronomy15061489
OpenAlex
W4411453576
Cited by
46
References
180
Citations by year
2026: 34 · 2025: 12
FWCI
13.89
Type
journal article
Language
en
Open access
Licence
Locations
  • Agronomy (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant tissue culture and regeneration
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Genetic and Mutation Studies
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetically Modified Organisms Research
Keywords
somaclonal variation, clonal fidelity, plant tissue culture, genetic stability, epigenetic variation, plant improvement, bisulfite sequencing, cytogenetic analysis, RNA sequencing, horticulture, forestry

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-10-28.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-28.

Cited sources are checked by gpt-6-sol.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

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