Genome-Wide Association Study on Candidate Genes Associated with Soybean Stem Pubescence and Hilum Colors
文献类型： 外文期刊
作者： Zhou, Miaomiao 1 ; Wang, Junyan 1 ; Chen, Huatao 2 ; Jia, Qianru 4 ; Hu, Shengyan 3 ; Xiong, Yawen 3 ; Zhang, Hongmei 4 ; Zhang, Wei 4 ; Wang, Qiong 2 ; Su, Chengfu 1 ;
作者机构： 1.Qingdao Agr Univ, Coll Agr, Qingdao 266109, Peoples R China
2.Zhongshan Lab Biol Breeding, Nanjing 210014, Peoples R China
3.Nanjing Agr Univ, Coll Life Sci, Nanjing 210095, Peoples R China
4.Jiangsu Acad Agr Sci, Inst Ind Crops, Nanjing 210014, Peoples R China
关键词： soybean; stem pubescence color; hilum color; genome-wide association study; SNP; candidate gene
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2024 年 14 卷 3 期
页码：
收录情况： SCI
摘要： The colorations of stem pubescence and hilum are crucial criteria for discerning diverse soybean germplasms, governed by multiple genes that substantially influence the seed's outward appearance quality and the resistance to abiotic stresses. This comprehensive study delved into the stem pubescence and hilum color traits across a natural population of 264 accessions during 2021 and 2022. The phenotypes of these two traits within our population were analyzed for the investigation of population genetics and evaluation of germplasm resources in the future. Numerous noteworthy SNPs associated with both traits were detected through a genome-wide association study (GWAS), with the most significant signals for 2021 and 2022 localized on chromosome 6. Seven candidate genes regulating stem pubescence color and four genes influencing hilum color were identified by analyzing the expression patterns, cold stress responses, and regulatory pathways of genes within the LD decay distance of SNPs. This study not only underscores the applicability of GWAS in unraveling the genetic basis of quality traits, but also contributes novel genetic reservoirs and research paradigms to the explorations of the soybean plant and seed color. These results provide foundational insights into the breeding improvement of seeds' outward appearance quality and a comprehensive evaluation of soybean germplasm.
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