Identification of Quantitative Trait Loci Associated with Plant Adaptation Traits Using Nested Association Mapping Population
Amalova A. Babkenov A. Philp C. Griffiths S. Abugalieva S. Turuspekov Y.
September 2024Multidisciplinary Digital Publishing Institute (MDPI)
Plants
2024#13Issue 18
This study evaluated 290 recombinant inbred lines (RILs) of the nested association mapping (NAM) population from the UK. The population derived from 24 families, where a common parent was “Paragon,” one of the UK’s spring wheat cultivar standards. All genotypes were tested in two regions of Kazakhstan at the Kazakh Research Institute of Agriculture and Plant Industry (KRIAPI, Almaty region, Southeast Kazakhstan, 2019–2022 years) and Alexandr Barayev Scientific-Production Center for Grain Farming (SPCGF, Shortandy, Akmola region, Northern Kazakhstan, 2019–2022 years). The studied traits consisted of plant adaptation-related traits, including heading date (HD, days), seed maturation date (SMD, days), plant height (PH, cm), and peduncle length (PL, cm). In addition, the yield per m2 was analyzed in both regions. Based on a field evaluation of the population in northern and southeastern Kazakhstan and using 10,448 polymorphic SNP (single-nucleotide polymorphism) markers, the genome-wide association study (GWAS) allowed for detecting 74 QTLs in four studied agronomic traits (HD, SMD, PH, and PL). The literature survey suggested that 16 of the 74 QTLs identified in our study had also been detected in previous QTL mapping studies and GWASs for all studied traits. The results will be used for further studies related to the adaptation and productivity of wheat in breeding projects for higher grain productivity.
bread wheat , genome-wide association studies , nested association mapping , plant adaptation-related traits
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Institute of Plant Biology and Biotechnology, Almaty, 050040, Kazakhstan
Alexandr Barayev Scientific-Production Center for Grain Farming, Shortandy, 021600, Kazakhstan
John Innes Centre, Norwich, NR4 7UH, United Kingdom
Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty, 050040, Kazakhstan
Institute of Plant Biology and Biotechnology
Alexandr Barayev Scientific-Production Center for Grain Farming
John Innes Centre
Faculty of Biology and Biotechnology
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