Mapping Quantitative Trait Loci for 1000-Grain Weight in a Double Haploid Population of Common Wheat.
作者： Tao Liu , Lijun Wu , Xiaolong Gan , Wenjie Chen , Baolong Liu
DOI: 10.3390/IJMS21113960
关键词:
摘要: Thousand-grain weight (TGW) is a very important yield trait of crops. In the present study, we performed quantitative locus (QTL) analysis TGW in doubled haploid population obtained from cross between bread wheat cultivar "Superb" and breeding line "M321" using 55-k single-nucleotide polymorphism (SNP) genotyping assay. A genetic map containing 15,001 SNP markers spanning 2209.64 cM was constructed, 9 QTLs were mapped to chromosomes 1A, 2D, 4B, 4D, 5A, 5D, 6A, 6D based on analyses conducted six experimental environments during 2015-2017. The effects qTgw.nwipb-4DS qTgw.nwipb-6AL shown be strong stable different environments, explaining 15.31-32.43% 21.34-29.46% observed phenotypic variance, they within distances 2.609 5.256 cM, respectively. These novel may used marker-assisted selection high-yield breeding.
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