Genetic diversity and population structure of Plasmopara viticola in China

文献类型： 外文期刊

第一作者： Yin, Ling

作者： Yin, Ling;Zhang, Yali;Lu, Jiang;Hao, Yan

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

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收录情况： SCI

摘要： Grape downy mildew is a destructive oomycete disease worldwide for viticulture. A total of 440 infected leaf lesions were collected from nineteen vineyards distributing in the major viticulture regions in China. Six specific SSR markers were used to genetically characterize the Plasmopara viticola populations. A total of 60 alleles were generated and 324 distinct genotypes were identified based on these multi-locus markers. Most populations had high levels of genetic and genotypic diversity. AMOVA analysis showed that majority of the total genetic diversity was distributed within the vineyards while moderate to high genetic differentiation was also observed among some P. viticola populations. Three populations (BJ, GX, and GS2) were clearly separated from the rest of the populations by using PCA and Nei's genetic distance analysis. Mantel test showed no significant correlation between unbiased Nei's genetic distance and geographical distance

分类号： S432.1

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