Genetic Analysis of Cotton Fiber Traits in Gossypium Hybrid Lines

文献类型： 外文期刊

第一作者： Wang, Heng

作者： Wang, Heng;Cai, Xiaoyan;Umer, Muhammad Jawad;Xu, Yanchao;Hou, Yuqing;Zheng, Jie;Liu, Fang;Wang, Kunbo;Zhou, Zhongli;Chen, Mengshan;Ma, Shuping;Yu, Jingzhong;Cai, Xiaoyan;Zheng, Jie;Liu, Fang;Liu, Fang;Cai, Xiaoyan;Hou, Yuqing;Zheng, Jie;Liu, Fang

作者机构：

期刊名称：PHYSIOLOGIA PLANTARUM （ 影响因子：5.4； 五年影响因子：5.5 ）

ISSN： 0031-9317

年卷期： 2024 年 176 卷 4 期

页码：

收录情况： SCI

摘要： Cotton plays a crucial role in the progress of the textile industry and the betterment of human life by providing natural fibers. In our study, we explored the genetic determinants of cotton architecture and fiber yield and quality by crossbreeding Gossypium hirsutum and Gossypium barbadense, creating a recombinant inbred line (RIL) population. Utilizing SNP markers, we constructed an extensive genetic map encompassing 7,730 markers over 2,784.2 cM. We appraised two architectural and seven fiber traits within six environments, identifying 58 QTLs, of which 49 demonstrated stability across these environments. These encompassed QTLs for traits such as lint percentage (LP), boll weight (BW), fiber strength (STRENGTH), seed index (SI), and micronaire (MIC), primarily located on chromosomes chr-A07, chr-D06, and chr-D07. Notably, chr-D07 houses a QTL region affecting SI, corroborated by multiple studies. Within this region, the genes BZIP043 and SEP2 were identified as pivotal, with SEP2 particularly showing augmented expression in developing ovules. These discoveries contribute significantly to marker-assisted selection, potentially elevating both the yield and quality of cotton fiber production. These findings provide valuable insights into marker-assisted breeding strategies, offering crucial information to enhance fiber yield and quality in cotton production.

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