Association mapping and domestication analysis to dissect genetic improvement process of upland cotton yield-related traits in China

查看全文 作　　者：GUO [1]Chunping;PAN [1]Zhenyuan;YOU [2]Chunyuan;ZHOU [3]Xiaofeng;HUANG [4]Cong;SHEN [4]Chao;ZHAO [1]Ruihai;YANG [1,5]Qingyong;ZHU [1,4]Longfu;SHAHZAD [6]Raheel;MENG [7]Fande;LIN [1,4]Zhongxu;NIE [1]Xinhui

机构地区：[1]Key Laboratory of Oasis Ecology Agricultural of Xinjiang Production and Construction Corps,Agricultural College,Shihezi University,Shihezi,832003,Xinjiang,China;[2]Cotton Research Institute,Shihezi Academy of Agriculture Science,Shihezi,832011,Xinjiang,China;[3]Cotton Institute,Xinjiang Academy of Agriculture and Reclamation Science,Shihezi,832000,Xinjiang,China;[4]National Key Laboratory of Crop Genetic Improvement,College of Plant Sciences&Technology,Huazhong Agricultural University,Wuhan,430070,Hubei,China;[5]Hubei Key Laboratory of Agricultural Bioinformatics,College of Informatics,Huazhong Agricultural University,Wuhan,430070,Hubei,China;[6]Department of Biotechnology,Faculty of Science and Technology,Universitas Muhammadiyah Bandung,Bandung,West Java,40614,Indonesia;[7]Agricultural Science Research Institute of the 5th Division of Xinjiang Production and Construction Corps,Shuanghe,833408,Xinjiang,China

出　　处：《Journal of Cotton Research》索引2021年第4卷第2期,共12页

基　　金：This work was supported by the National Natural Science Foundation of China(31760402);Young and Middle-aged Science and Technology Leading Talents of Xinjiang Production and Construction Corps(2019CB027). 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. 关键词：Upland cotton Genome wide association study Yield-related traits Favorable alleles

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Association mapping and domestication analysis to dissect genetic improvement process of upland cotton yield-related traits in China

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