Association mapping and domestication analysis to dissect genetic improvement process of upland cotton yield-related traits in China
文献类型： 外文期刊
作者： Guo Chunping 1 ; Pan Zhenyuan 1 ; You Chunyuan 2 ; Zhou Xiaofeng 3 ; Huang Cong 4 ; Shen Chao 4 ; Zhao Ruihai 1 ; Yang Qingyong 1 ; Zhu Longfu 1 ; Raheel, Shahzad 6 ; Meng Fande 7 ; Lin Zhongxu 1 ; Nie Xinhui 1 ;
作者机构： 1.Shihezi Univ, Agr Coll, Key Lab Oasis Ecol Agr Xinjiang Prod & Construct, Shihezi 832003, Xinjiang, Peoples R China
2.Shihezi Acad Agr Sci, Cotton Res Inst, Shihezi 832011, Xinjiang, Peoples R China
3.Xinjiang Acad Agr & Reclamat Sci, Cotton Inst, Shihezi 832000, Xinjiang, Peoples R China
4.Huazhong Agr Univ, Coll Plant Sci & Technol, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Hubei, Peoples R China
5.Huazhong Agr Univ, Coll Informat, Hubei Key Lab Agr Bioinformat, Wuhan 430070, Hubei, Peoples R China
6.Univ Muhammadiyah Bandung, Fac Sci & Technol, Dept Biotechnol, Bandung 40614, West Java, Indonesia
7.Xinjiang Prod & Construct Corps, Div 5, Agr Sci Res Inst, Shuanghe 833408, Xinjiang, Peoples R China
关键词： Upland cotton; Genome wide association study; Yield-related traits; Favorable alleles
期刊名称：JOURNAL OF COTTON RESEARCH （ 影响因子：2.6； 五年影响因子：2.8 ）
ISSN： 2096-5044
年卷期： 2021 年 4 卷 1 期
页码：
收录情况： SCI
摘要： Background: Cotton fiber yield is a complex trait, which can be influenced by multiple agronomic traits. Unravelling the genetic basis of cotton fiber yield-related traits contributes to genetic improvement of cotton. Results: In this study, 503 upland cotton varieties covering the four breeding stages (BS1-BS4, 1911-2011) in China were used for association mapping and domestication analysis. One hundred and forty SSR markers significantly associated with ten fiber yield-related traits were identified, among which, 29 markers showed an increasing trend contribution to cotton yield-related traits from BS1 to BS4, and 26 markers showed decreased trend effect. Four favorable alleles of 9 major loci (R-2 >= 3) were strongly selected during the breeding stages, and the candidate genes of the four strongly selected alleles were predicated according to the gene function annotation and tissue expression data. Conclusions: The study not only uncovers the genetic basis of 10 cotton yield-related traits but also provides genetic evidence for cotton improvement during the cotton breeding process in China.
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