文献类型： 外文期刊
作者： Yang, Zhenhong 1 ; Wu, Xu 1 ; Zhu, Yina 1 ; Qu, Yuewen 1 ; Zhou, Changjun 2 ; Yuan, Ming 3 ; Zhan, Yuhang 1 ; Li, Yongguang 1 ; Teng, Weili 1 ; Zhao, Xue 1 ; Han, Yingpeng 1 ;
作者机构： 1.Northeast Agr Univ, Key Lab Soybean Biol Chinese, Key Lab Soybean Biol & Breeding, Genet Chinese Agr Minist,Minist Educ, Harbin 150030, Peoples R China
2.Heilongjiang Acad Agr Sci, Daqing Branch, Daqing 163711, Peoples R China
3.Heilongjiang Acad Agr Sci, Qiqihar Branch, Qiqihar 161006, Peoples R China
关键词： genome-wide association analysis; weighted gene coexpressionnetwork analysis; soybean isoflavone; hub gene; overexpression and knockout of GmOMT7
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.7； 五年影响因子：6.0 ）
ISSN： 0021-8561
年卷期： 2024 年 72 卷 33 期
页码：
收录情况： SCI
摘要： Isoflavone is a secondary metabolite of the soybean phenylpropyl biosynthesis pathway with physiological activity and is beneficial to human health. In this study, the isoflavone content of 205 soybean germplasm resources from 3 locations in 2020 showed wide phenotypic variation. A joint genome-wide association study (GWAS) and weighted gene coexpression network analysis (WGCNA) identified 33 single-nucleotide polymorphisms and 11 key genes associated with soybean isoflavone content. Gene ontology enrichment analysis, gene coexpression, and haplotype analysis revealed natural variations in the Glyma.12G109800 (GmOMT7) gene and promoter region, with Hap1 being the elite haplotype. Transient overexpression and knockout of GmOMT7 increased and decreased the isoflavone content, respectively, in hairy roots. The combination of GWAS and WGCNA effectively revealed the genetic basis of soybean isoflavone and identified potential genes affecting isoflavone synthesis and accumulation in soybean, providing a valuable basis for the functional study of soybean isoflavone.
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