The DOI matches its Crossref record; 23 of the 24 references it cites were found in a registry or an index.
Marker-assisted selection to introgress rice QTLs controlling root traits into an Indian upland rice variety
Abstract
A marker-assisted back-crossing (MABC) breeding programme was conducted to improve the root morphological traits, and thereby drought tolerance, of the Indian upland rice variety, Kalinga III. This variety, the recurrent parent in the MABC, had not previously been used for quantitative trait locus (QTL) mapping. The donor parent was Azucena, an upland japonica variety from Philippines. Five segments on different chromosomes were targeted for introgression; four segments carried QTLs for improved root morphological traits (root length and thickness) and the fifth carried a recessive QTL for aroma. Some selection was made at non-target regions for recurrent parent alleles. We describe the selection made in three backcross (BC) generations and two further crosses between BC3 lines to pyramid (stack) all five target segments. Pyramids with four root QTLs were obtained in eight generations, completed in 6 years using 3,000 marker assays in a total of 323 lines. Twenty-two near-isogenic lines (NILs) were evaluated for root traits in five field experiments in Bangalore, India. The target segment on chromosome 9 (RM242-RM201) significantly increased root length under both irrigated and drought stress treatments, confirming that this root length QTL from Azucena functions in a novel genetic background. No significant effects on root length were found at the other four targets. Azucena alleles at the locus RM248 (below the target root QTL on chromosome 7) delayed flowering. Selection for the recurrent parent allele at this locus produced early-flowering NILs that were suited for upland environments in eastern India.
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“Some genes [or at least quantitative trait loci (QTLs)] improve both root architecture and plant yield (Passioura, 1983(Passioura, , 2006;;Tuberosa et al., 2002;Steele et al.,”
From Breeding crop plants with deep roots: their role in sustainable carbon, nutrient and water sequestration (2011) · cites this paper as Steele et al., 2006
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Self-citationMarker-Assisted Introgression of Quantitative Trait Loci
Charcosset, A. (1997) · Genetics · doi:10.1093/genetics/147.3.1469 · Cited by 365
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Locating QTL for osmotic adjustment and dehydration tolerance in rice
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Aroma in rice: genetic analysis of a quantitative trait
Lorieux, M., Petrov, M., Huang, N., Guiderdoni, E., & Ghesquière, A. (1996) · Theoretical and Applied Genetics · doi:10.1007/bf00230138 · Cited by 236
Upland rice grown in soil-filled chambers and exposed to contrasting water-deficit regimes
Price, A. H., Steele, K. A., Moore, B. J., & Jones, R. G. W. (2002) · Field Crops Research · doi:10.1016/s0378-4290(02)00010-2 · Cited by 234
Self-citationPrice, A. H., Steele, K. A., Moore, B. J., Barraclough, P. B., & Clark, L. J. (2000) · Theoretical and Applied Genetics · doi:10.1007/s001220050007 · Cited by 217
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Research works printed but not linked: 1
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Marker-assisted selection: an approach for precision plant breeding in the twenty-first century
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Comas, L. H., Becker, S. R., Cruz, V. M. V., Byrne, P. F., & Dierig, D. A. (2013) · Frontiers in Plant Science · doi:10.3389/fpls.2013.00442 · Cited by 1,598
Drought tolerance improvement in crop plants: An integrated view from breeding to genomics
Cattivelli, L., Rizza, F., Badeck, F., Mazzucotelli, E., Mastrangelo, A. M., Francia, E., Marè, C., Tondelli, A., & Stanca, A. M. (2007) · Field Crops Research · doi:10.1016/j.fcr.2007.07.004 · Cited by 1,446
Strategies for developing Green Super Rice
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Metadata
- Authors
- Steele, K. A., Price, A. H., Shashidhar, H. E., & Witcombe, J. R.
- Affiliations
- Bangor University (GB)
- University of Aberdeen (GB)
- University of Agricultural Sciences, Bangalore (IN)
- Corresponding author
- Steele, K. A.
- Venue
- Theoretical and Applied Genetics
- Published
- 2005-10-06
- Volume
- 112
- Issue
- 2
- Pages
- 208-221
- ISSN
- 0040-5752 (ISSN-L)
- 1432-2242
- OpenAlex
- W2137677313
- Cited by
- 370
- References
- 24
- Citations by year
- 2026: 6 · 2025: 5 · 2024: 9 · 2023: 10 · 2022: 15 · 2021: 14 · 2020: 36 · 2019: 10 · 2018: 21 · 2017: 17 · 2016: 20 · 2015: 25 · 2014: 20 · 2013: 30 · 2012: 23
- FWCI
- 8.45
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Theoretical and Applied Genetics (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Department for International Development
- 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 › Rice Cultivation and Yield Improvement
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Plant Disease Resistance and Genetics
- Keywords
- marker-assisted backcrossing, rice, upland rice, quantitative trait loci, root traits, drought tolerance, introgression, near-isogenic lines, root length, root thickness, flowering time, Azucena, chromosome 9
- MeSH terms
- Crosses, Genetic, Genetic Markers, Genotype, India, Phenotype, Oryza, Selection, Genetic, Plant Roots, Chromosomes, Plant, Quantitative Trait Loci
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