Genome-Wide Association Study and Identification of Candidate Genes Associated with Seed Number per Pod in Soybean

文献类型： 外文期刊

第一作者： Wang, Qiong

作者： Wang, Qiong;Zhang, Wei;Xu, Wenjing;Zhang, Hongmei;Liu, Xiaoqing;Chen, Xin;Chen, Huatao;Chen, Huatao

作者机构：

关键词： soybean; seed number per pod; leaf characteristics; genome-wide association study; single nucleotide polymorphism

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2024 年 25 卷 5 期

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收录情况： SCI

摘要： Soybean (Glycine max [L.] Merr.) is one of the primary sources of plant protein and oil for human foods, animal feed, and industrial processing. The seed number per pod generally varies from one to four and is an important component of seed number per unit area and seed yield. We used natural variation in 264 landraces and improved cultivars or lines to identify candidate genes involved in the regulation of seed number per pod in soybean. Genome-wide association tests revealed 65 loci that are associated with seed number per pod trait. Among them, 11 could be detected in multiple environments. Candidate genes were identified for seed number per pod phenotype from the most significantly associated loci, including a gene encoding protein argonaute 4, a gene encoding histone acetyltransferase of the MYST family 1, a gene encoding chromosome segregation protein SMC-1 and a gene encoding exocyst complex component EXO84A. In addition, plant hormones were found to be involved in ovule and seed development and the regulation of seed number per pod in soybean. This study facilitates the dissection of genetic networks underlying seed number per pod in soybean, which will be useful for the genetic improvement of seed yield in soybean.

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