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Analysis of the genetic diversity of grain legume germplasm resources in China and the development of universal SSR primers

文献类型： 外文期刊

作者： Zhou, Runnan 1 ; Yang, Siqi 1 ; Zhang, Bo 1 ; Qi, Zhaoming 1 ; Xin, Dawei 1 ; Su, Anyu 2 ; Li, Sinan 3 ; Cheng, Peng 1 ; Bai, Yunqi 1 ; Yin, Zhengong 4 ; Zhang, Binshuo 1 ; Zhao, Yujing 1 ; Zhao, Ying 1 ; Chen, Qingshan 1 ; Wu, Xiaoxia 1 ;

作者机构： 1.Northeast Agr Univ, Coll Agr, Dept Agron, Harbin, Heilongjiang, Peoples R China

2.Northeast Agr Univ, Coll Publ Adm & Law, Dept Land Remediat Engn, Harbin, Heilongjiang, Peoples R China

3.Heilongjiang Acad Agr Sci, Dept Natl Corn Engn Lab, Key Lab Maize Genet & Breeding, Harbin, Heilongjiang, Peoples R China

4.Heilongjiang Acad Agr Sci, Crop Resources Inst, Harbin, Heilongjiang, Peoples R China

关键词： Grain legume resources; SSR marker development; genetic diversity analysis; genetic structure

期刊名称：BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT （ 影响因子：1.762； 五年影响因子：2.116 ）

ISSN： 1310-2818

年卷期： 2021 年 35 卷 1 期

页码：

收录情况： SCI

摘要： The research objects of this paper are Vigna angularis, Vigna radiata and Phaseolus vulgaris, which are important grain legume resources in China. However, the genetic structure between the three species is not clear. Therefore, this study developed a set of universal gSSR (simple sequence repeat) primers based on the whole-genome sequences of adzuki beans, mung beans and common beans and analysed the genetic diversity of the test resources based on universal gSSR loci. A total of 53,099 pairs of universal primers were developed, and 43 universal primer pairs were selected for analysis of their test resources. The genetic diversity of the tested common bean germplasm resources was the largest, and the genetic diversity of the tested mung bean germplasm resources was the smallest. Based on the structural analysis and NJ algorithm, the genetic relationships of the test resources were analysed. When Delta K = 3, 3 and 2, the test resources were divided into 3, 3 and 2 subgroups, respectively. The average genetic differentiation coefficient among the three species was 0.24, and the average gene flow value was 0.78. The genetic distances among the three species ranged from 0.27 to 0.90. The genetic distance between the tested adzuki bean germplasm resources and the tested mung bean germplasm resources was the closest, and the genetic distance between the test adzuki bean germplasm resources and the tested common bean germplasm resources was the farthest. This study provides a scientific basis for the rational development, protection and sustainable use of germplasm resources.

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