Genome-Wide Association Study Reveals the QTLs for Seed Storability in World Rice Core Collections
文献类型： 外文期刊
作者： Wu, Fangxi 1 ; Luo, Xi 1 ; Wang, Lingqiang 3 ; Wei, Yidong 1 ; Li, Jianguo 3 ; Xie, Huaan 1 ; Zhang, Jianfu 1 ; Xie, Guos 1 ;
作者机构： 1.Fujian Acad Agr Sci, Rice Res Inst, Fuzhou 350019, Peoples R China
2.Huazhong Agr Univ, Coll Plant Sci & Technol, MOA Key Lab Crop Ecophysiol & Farming Syst Middle, Wuhan 430070, Peoples R China
3.Guangxi Univ, Coll Agr, State Key Lab Conservat & Utilizat Subtrop Agrobi, Nanning 530004, Peoples R China
4.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Peoples R China
关键词： rice (Oryza sativa L.); seed storability; GWAS; QTL; SNP
期刊名称：PLANTS-BASEL （ 影响因子：2.762； ）
ISSN：
年卷期： 2021 年 10 卷 4 期
页码：
收录情况： SCI
摘要： Seed storability is a main agronomically important trait to assure storage safety of grain and seeds in rice. Although many quantitative trait loci (QTLs) and associated genes for rice seed storability have been identified, the detailed genetic mechanisms of seed storability remain unclear in rice. In this study, a genome-wide association study (GWAS) was performed in 456 diverse rice core collections from the 3K rice genome. We discovered the new nine QTLs designated as qSS1-1, qSS1-2, qSS2-1, qSS3-1, qSS5-1, qSS5-2, qSS7-1, qSS8-1, and qSS11-1. According to the analysis of the new nine QTLs, our results could well explain the reason why seed storability of indica subspecies was superior to japonica subspecies in rice. Among them, qSS1-2 and qSS8-1 were potentially co-localized with a known associated qSS1/OsGH3-2 and OsPIMT1, respectively. Our results also suggest that pyramiding breeding of superior alleles of these associated genes will lead to new varieties with improved seed storability in the future.
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