Cited by 5Genetic Mapping and Diversity in Plants and AnimalsPlant Stress Responses and ToleranceRice Cultivation and Yield Improvement

Identification of candidate genes for salt tolerance at seedling stage in rice using qtl-seq and chromosome segment substitution line-derived population

Open access
Leawtrakun, Jiraporn, Aesomnuk, Wanchana, Khanthong, Srisawat, Dumhai, Reajina, Songtoasesakul, Decha, Phosuwan, Sunadda, Nuanpirom, Jiratchaya, Charoensawan, Varodom +6 more·2024·Agronomy

Abstract

Rice is a staple food for more than half of the world’s population. However, the pervasive problem of salinity is severely undermining rice production, especially in coastal and low-lying areas where soil salinization is widespread. This stress, exacerbated by climate change, necessitates the development of salt-tolerant rice varieties to ensure food security. In this study, an F2:3 population (n = 454) from a cross of KDML105 and its chromosome segment substitution line (CSSL) was used to identify genomic regions associated with salt tolerance at the seedling stage. Using the QTL-seq approach, a QTL significantly associated with salt tolerance was identified on chromosome 1. Annotation of candidate genes in this region revealed the potential regulators of salt tolerance, including MIKC-type MADS domain proteins, calmodulin-binding transcription factors, and NB-ARC domain-containing proteins. These and other identified genes provide insights into the genetic basis of salt tolerance. This study underscores the importance of using advanced genomics tools and CSSL populations in the study of complex traits such as salt tolerance in rice. Several candidate genes identified in this study could be used in further studies on molecular or physiological mechanisms related to the salt response and tolerance mechanism in rice. Additionally, these genes could also be utilized in plant breeding programs for salt tolerance.

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Crossref · 10.3390/agronomy14050929

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73 of 73 references verified0 citation errors · 0 not checkable

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  • Editing genes involved in ion homeostasis and ROS scavenging significantly improves salt tolerance in various crops.

    “Additionally, editing genes involved in ion homeostasis and ROS scavenging has significantly improved salt tolerance in various crops (Leawtrakun et al., 2024; Wani et al., 2020).”

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Authors
Leawtrakun, J., Aesomnuk, W., Khanthong, S., Dumhai, R., Songtoasesakul, D., Phosuwan, S., Nuanpirom, J., Charoensawan, V., Siangliw, J. L., Ruanjaichon, V., Toojinda, T., Wanchana, S., Siangliw, M., & Arikit, S.
Affiliations
  • Kasetsart University (TH)
  • National Center for Genetic Engineering and Biotechnology (TH)
  • Mahidol University (TH)
  • Siriraj Hospital (TH)
Corresponding author
  • Siangliw, Meechai
  • Arikit, Siwaret
Venue
Agronomy
Publisher
MDPI AG
Published
2024-04-28
Volume
14
Issue
5
Pages
929
ISSN
2073-4395 (ISSN-L)
OpenAlex
W4396576798
Cited by
5
References
75
Citations by year
2026: 2 · 2025: 2 · 2024: 1
FWCI
1.33
Type
journal article
Language
en
Open access
Locations
  • Agronomy (publishedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Science and Technology Development Agency (NSTDA), Thailand (P-18-51456, P-19-50205, P-23-51489, NRCT-RTA/812/2563, N34E670027, TG-22-11-61-052M)
  • National Research Council of Thailand (P-18-51456, P-19-50205, P-23-51489, NRCT-RTA/812/2563, N34E670027, TG-22-11-61-052M)
  • Thailand Rice Science Research Hub of Knowledge (P-18-51456, P-19-50205, P-23-51489, NRCT-RTA/812/2563, N34E670027, TG-22-11-61-052M)
  • National Science, Research and Innovation Fund, Thailand Science Research and innovation (TSRI) (P-18-51456, P-19-50205, P-23-51489, NRCT-RTA/812/2563, N34E670027, TG-22-11-61-052M)
  • Thailand Graduate Institute of Science and Technology (TGIST) Scholarship, National Science and Technology Development Agency (NSTDA) (P-18-51456, P-19-50205, P-23-51489, NRCT-RTA/812/2563, N34E670027, TG-22-11-61-052M)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Stress Responses and Tolerance
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Rice Cultivation and Yield Improvement
Keywords
rice, salt tolerance, seedling stage, QTL-seq, chromosome segment substitution lines, candidate genes, KDML105, chromosome 1, MADS-box transcription factors, soil salinization, salt stress

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