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Identification of candidate genes and development of KASP markers for soybean shade-tolerance using GWAS

文献类型： 外文期刊

作者： Jia, Qianru 1 ; Hu, Shengyan 1 ; Li, Xihuan 1 ; Wei, Libin 2 ; Wang, Qiong 1 ; Zhang, Wei 1 ; Zhang, Hongmei 1 ; Liu, Xiaoqing 1 ; Chen, Xin 1 ; Wang, Xuejun 2 ; Chen, Huatao 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Ind Crops, Nanjing, Peoples R China

2.Jiangsu Yanjiang Inst Agr Sci, Nantong 226541, Peoples R China

3.Zhongshan Biol Breeding Lab ZSBBL, Nanjing, Peoples R China

关键词： soybean; shade tolerance; shade tolerance coefficient; GWAS; KASP

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：4.8； 五年影响因子：5.7 ）

ISSN： 1664-462X

年卷期： 2024 年 15 卷

页码：

收录情况： SCI

摘要： Shade has a direct impact on photosynthesis and production of plants. Exposure to shade significantly reduces crops yields. Identifying shade-tolerant genomic loci and soybean varieties is crucial for improving soybean yields. In this study, we applied a shade treatment (30% light reduction) to a natural soybean population consisting of 264 accessions, and measured several traits, including the first pod height, plant height, pod number per plant, grain weight per plant, branch number, and main stem node number. Additionally, we performed GWAS on these six traits with and without shade treatment, as well as on the shade tolerance coefficients (STCs) of the six traits. As a result, we identified five shade-tolerance varieties, 733 SNPs and four candidate genes over two years. Furthermore, we developed four kompetitive allele-specific PCR (KASP) makers for the STC of S18_1766721, S09_48870909, S19_49517336, S18_3429732. This study provides valuable genetic resources for breeding soybean shade tolerance and offers new insights into the theoretical research on soybean shade tolerance.

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