Comparison of genetic diversity between Chinese and american soybean (Glycine max (L.)) accessions revealed by high-density SNPs

Zhangxiong Liu, Huihui Li, Zixiang Wen, Xuhong Fan, Yinghui Li, Rongxia Guan, Yong Guo, Shuming Wang, Dechun Wang, Lijuan Qiu

Research output: Contribution to journalArticlepeer-review


Soybean is one of the most important economic crops for both China and the United States (US). The exchange of germplasm between these two countries has long been active. In order to investigate genetic relationships between Chinese and US soybean germplasm, 277 Chinese soybean accessions and 300 US soybean accessions from geographically diverse regions were analyzed using 5,361 SNP markers. The genetic diversity and the polymorphism information content (PIC) of the Chinese accessions was higher than that of the US accessions. Population structure analysis, principal component analysis, and cluster analysis all showed that the genetic basis of Chinese soybeans is distinct from that of the USA. The groupings observed in clustering analysis reflected the geographical origins of the accessions; this conclusion was validated with both genetic distance analysis and relative kinship analysis. FST-based and EigenGWAS statistical analysis revealed high genetic variation between the two subpopulations. Analysis of the 10 loci with the strongest selection signals showed that many loci were located in chromosome regions that have previously been identified as quantitative trait loci (QTL) associated with environmental-adaptation-related and yield-related traits. The pattern of diversity among the American and Chinese accessions should help breeders to select appropriate parental accessions to enhance the performance of future soybean cultivars.

Original languageEnglish
Article number2014
JournalFrontiers in Plant Science
StatePublished - 30 Nov 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Liu, Li, Wen, Fan, Li, Guan, Guo, Wang, Wang and Qiu.


  • Chinese soybean accessions
  • Genetic diversity
  • Population structure
  • Single nucleotide polymorphism (SNP)
  • Soybean
  • US soybean accessions

ASJC Scopus subject areas

  • Plant Science


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