Analysis of SSRs Uncovers Hierarchical Structure and Genetic Diversity in Chinese Soybean Landraces

作者：Li Ying hui; Smulders Marinus J M; Chang Ru zhen; Qiu Li juan^*

来源：Agricultural Sciences in China, 2010, 9(12): 1739-1748.

DOI：10.1016/S1671.2927(09)60272-8

• soybean
• landrace
• hierarchical structure
• diversity

For clarifying the hierarchical patterns of population structure of soybean landraces in China, the seven clusters previously identified using Bayesian clustering of 1 504 soybean landraces based on SSR markers genotyping data were further analyzed Using the largest value of Delta K, these landraces could be split into 20 sub-clusters, which was supported by highly significant pairwise F(st)-values and generally in accordance with the geographic origin and sowing types The autumn-sowing types ended up in one distinct sub-cluster from the otherwise summer-sowing type, where the autumn-sowing types are most likely derived from The division into 20 sub-clusters explained 7 3% of the genetic variation, next to 9 7% present among the seven clusters, 81 1% residing among landraces within sub-clusters, and 1 9% within the landraces The distribution pattern of genetic diversity among the sub-clusters of each cluster was uneven, with two HSuM sub-clusters (Central China) and some South China sub-clusters showing significantly higher level of genetic diversity

• 出版日期2010-12-20
• 单位中国农业科学院