文献类型： 外文期刊
作者： Chen, Q. 1 ; Qi, H. 1 ; Zhang, X. 1 ; Li, W. 1 ; Hou, M. 1 ; Zhu, R. 1 ; Yin, Z. 1 ; Han, X. 3 ; Jiang, H.; Liu, C.; Hu, Z.; 1 ;
作者机构： 1.Northeast Agr Univ, Coll Agr, Harbin 150030, Heilongjiang, Peoples R China
2.Heilongjiang Acad Agr Sci, Crop Breeding Inst, Harbin 150086, Heilongjiang, Peoples R China
3.Crop Res & Breeding Ctr Land Reclamat Heilongjian, Harbin 150090, Heilongjiang, Peoples R China
关键词： soybean protein content;multifactor dimensionality reduction;epistasis effect analysis;SNP-SNP network
期刊名称：CANADIAN JOURNAL OF PLANT SCIENCE （ 影响因子：1.018； 五年影响因子：1.242 ）
ISSN： 0008-4220
年卷期： 2017 年 97 卷 6 期
页码：
收录情况： SCI
摘要： Soybean protein content is a valuable quantitative trait controlled by multiple genes. The epistatic interaction of these genes can increase protein content observably. In this study, we used the multifactor dimensionality reduction method and a soybean high-density genetic map including 5308 markers to identify stable loci controlling protein content in soybean across 23 environments. In total, 31 897 046 single nucleotide polymorphism (SNP)-protein interaction pairs were detected. Among these, 46 stable SNP interaction pair associations with soybean protein content were identified under multiple environments, with 2 and 44 SNP pairs stably detected across four and three environments, respectively. Hot spot regions for interaction pairs were detected on linkage groups Gm17, Gm06, and Gm03, consistent with previous quantitative trait locus mapping. The epistatic effects and contributions of the stable interaction pairs ranged from 0.0008 to 0.5483 and 0.0003 to 0.5126, respectively. Eight SNP epistatic interaction subnets were constructed. Ten candidate genes from these interaction subnets showed a relationship with seed protein storage or amino acid biosynthesis and metabolism. The results of this study provide insights into the genetic architecture of soybean protein content and can serve as a basis for marker-assisted selection breeding.
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