Population genetic structures of Puccinia triticina in five provinces of China

文献类型： 外文期刊

第一作者： Ma, Yutong

作者： Ma, Yutong;Liu, Taiguo;Liu, Bo;Gao, Li;Chen, Wanquan;Liu, Taiguo;Gao, Li;Chen, Wanquan

作者机构：

关键词： Puccinia triticina; Molecular variation; Population genetic structure; SNPs

期刊名称：EUROPEAN JOURNAL OF PLANT PATHOLOGY （ 影响因子：1.907； 五年影响因子：2.022 ）

ISSN： 0929-1873

年卷期： 2020 年 156 卷 4 期

页码：

收录情况： SCI

摘要： To understand the evolution of Puccinia triticina, we used single nucleotide polymorphisms (SNPs) to evaluate the P. triticina population genetic structure in five Chinese provinces, Gansu, Henan, Hubei, Shaanxi and Sichuan from 2013 to 2015. The populations exhibited characteristics of high haplotype diversity but low nuclear diversity. The gene flow was frequent between Gansu and Henan, Gansu and Sichuan and Sichuan and Henan. Genetic differentiation was significant among populations except between Henan and Gansu and between Henan and Sichuan (P < 0.05). The P. triticina isolates from the five provinces were grouped into two clusters: Gansu/Henan/Shaanxi/Sichuan and Hubei clusters. AMOVA analysis showed that the populations exhibited genetic variation; the variation percentage reached 87.45%, and the genetic variation within populations was the major source of variation. Our results suggest that the genetic diversity of P. triticina was high and that gene flow was frequent between populations. P. triticina population of China had experienced a rapid expansion, which caused some differences between populations. The Hubei population was different from other population due to genetic variation within populations.

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