Genetic diversity and population structure analysis of Capsicum germplasm accessions

文献类型： 外文期刊

第一作者： Gu Xiao-zhen

作者： Gu Xiao-zhen;Cao Ya-cong;Zhang Zheng-hai;Zhang Bao-xi;Zhao Hong;Zhang Xiao-Min;Wang Hai-ping;Li Xi-xiang;Wang Li-hao;Wang Hai-ping;Li Xi-xiang

作者机构：

关键词： Capsicum; germplasm; SSR; genetic diversity; core collection

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2019 年 18 卷 6 期

页码：

收录情况： SCI

摘要： Genetic diversity plays an essential role in plant breeding and utilization. Pepper is an important vegetable and spice crop worldwide. The genetic diversity of 1 904 accessions of pepper conserved at the National Mid-term Genebank for Vegetables, Beijing, China was analyzed based on 29 simple sequence repeat (SSR) markers, which were evenly distributed over 12 pepper chromosomes. The pepper accessions were divided into two groups in a genetic structure analysis, and the two groups showed obvious differences in fruit type and geographical distribution. We finally selected 248 accessions capturing 75.6% of the SSR alleles as the core collection for further research. Insights into the genetic structure of pepper provide the basis for population-level gene mining and genetic improvement.

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