文献类型： 外文期刊
作者： Wang, Zhong 1 ; Lai, Xiangjun 5 ; Wang, Chunsheng 1 ; Yang, Hongmei 6 ; Liu, Zihui 8 ; Fan, Zheru 1 ; Li, Jianfeng 1 ; Zhang, Hongzhi 1 ; Liu, Manshuang 5 ; Zhang, Yueqiang 1 ;
作者机构： 1.Xinjiang Acad Agr Sci, Inst Nucl & Biol Technol, Urumqi 830091, Peoples R China
2.Minist Agr, Inst Nucl & Biol Technol, Key Lab Crop Ecophysiol & Farming Syst Desert Oasi, Urumqi 830091, Peoples R China
3.Inst Nucl & Biol Technol, Xinjiang Key Lab Crop Biotechnol, Urumqi 830091, Peoples R China
4.Inst Nucl & Biol Technol, Xinjiang Crop Chem Control Engn Technol Res Ctr, Urumqi 830091, Peoples R China
5.Northwest A&F Univ, Coll Agron, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Peoples R China
6.Xinjiang Acad Agr Sci, Inst Appl Microbiol, Urumqi 830091, Peoples R China
7.Inst Appl Microbiol, Xinjiang Lab Special Environm Microbiol, Urumqi 830091, Peoples R China
8.Baoding Univ, Dept Biochem, Baoding 071000, Peoples R China
关键词： quantitative trait locus; agronomic traits; drought tolerance; wheat; yield stability
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN： 2223-7747
年卷期： 2024 年 13 卷 6 期
页码：
收录情况： SCI
摘要： Drought-induced stress poses a significant challenge to wheat throughout its growth, underscoring the importance of identifying drought-stable quantitative trait loci (QTLs) for enhancing grain yield. Here, we evaluated 18 yield-related agronomic and physiological traits, along with their drought tolerance indices, in a recombinant inbred line population derived from the XC7 x XC21 cross. These evaluations were conducted under both non-stress and drought-stress conditions. Drought stress significantly reduced grain weight per spike and grain yield per plot. Genotyping the recombinant inbred line population using the wheat 90K single nucleotide polymorphism array resulted in the identification of 131 QTLs associated with the 18 traits. Drought stress also exerted negative impacts on grain formation and filling, directly leading to reductions in grain weight per spike and grain yield per plot. Among the identified QTLs, 43 were specifically associated with drought tolerance across the 18 traits, with 6 showing direct linkages to drought tolerance in wheat. These results provide valuable insights into the genetic mechanisms governing wheat growth and development, as well as the traits contributing to the drought tolerance index. Moreover, they serve as a theoretical foundation for the development of new wheat cultivars having exceptional drought tolerance and high yield potentials under both drought-prone and drought-free conditions.
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