Dissecting the Superior Drivers for the Simultaneous Improvement of Fiber Quality and Yield Under Drought Stress Via Genome-Wide Artificial Introgressions of Gossypium barbadense into Gossypium hirsutum
文献类型： 外文期刊
作者： Han, Bei 1 ; Zhang, Wenhao 1 ; Wang, Fengjiao 1 ; Yue, Pengkai 1 ; Liu, Zhilin 1 ; Yue, Dandan 1 ; Zhang, Bing 1 ; Ma, Yizan 1 ; Lin, Zhongxu 1 ; Yu, Yu 3 ; Wang, Yanqin 4 ; Zhang, Xianlong 1 ; Yang, Xiyan 1 ;
作者机构： 1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China
2.Hubei Hongshan Lab, Wuhan 430070, Peoples R China
3.Xinjiang Acad Agr & Reclamat Sci, Cotton Inst, Shihezi 832000, Peoples R China
4.Tarim Univ, Coll Life Sci, Alar 843300, Peoples R China
关键词： cotton; drought stress; DRR1; DRT1; QTL
期刊名称：ADVANCED SCIENCE （ 影响因子：14.3； 五年影响因子：16.3 ）
ISSN：
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Global water scarcity and extreme weather intensify drought stress, significantly reducing cotton yield and quality worldwide. Drought treatments are conducted using a population of chromosome segment substitution lines generated from E22 (G. hirsutum) and 3-79 (G. barbadense) as parental lines either show superior yields or fiber quality under both control and drought conditions. Fourteen datasets, covering 4 yields and 4 quality traits, are compiled and assessed for drought resistance using the drought resistance coefficient (DRC) and membership function value of drought resistance (MFVD). Genome-wide association studies, linkage analysis, and bulked segregant analysis are combined to analyze the DR-related QTL. A total of 121 significant QTL are identified by DRC and MFVD of the 8 traits. CRISPR/Cas9 and virus-induced gene silencing techniques verified DRR1 and DRT1 as pivotal genes in regulating drought resistant of cotton, with hap(3-79) exhibiting greater drought resistance than hap(E22) concerning DRR1 and DRT1. Moreover, 14 markers with superior yield and fiber quality are selected for drought treatment. This study offers valuable insights into yield and fiber quality variations between G. hirsutum and G. barbadense amid drought, providing crucial theoretical and technological backing for developing cotton varieties resilient to drought, with high yield and superior fiber quality.
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