Novel microsatellite markers reveal multiple origins of Botryosphaeria dothidea causing the Chinese grapevine trunk disease

文献类型： 外文期刊

第一作者： Manawasinghe, Ishara S.

作者： Manawasinghe, Ishara S.;Zhang, Wei;Li, Xinghong;Chethana, K. W. Thilini;Chen, Zhen;Dissanayaka, Asha J.;Yan, Jiye;Manawasinghe, Ishara S.;Chethana, K. W. Thilini;Dissanayaka, Asha J.;Hyde, Kevin D.;Manawasinghe, Ishara S.;Chethana, K. W. Thilini;Dissanayaka, Asha J.;Hyde, Kevin D.;Zhang, Wei;Zhao, Wensheng;Xu, Jianping;Mugnai, Laura;Urbez-Torres, Jose R.;Savocchia, Sandra

作者机构：

关键词： Botryosphaeriaceae; Fungal pathogens; Genetic diversity; Microsatellite genotyping; Population structure; SSR; Vitis

期刊名称：FUNGAL ECOLOGY （ 影响因子：3.404； 五年影响因子：4.647 ）

ISSN： 1754-5048

年卷期： 2018 年 33 卷

页码：

收录情况： SCI

摘要： Botryosphaeria dothidea causes diseases in many different hosts worldwide. This species has become the most prominent fungal taxon causing grapevine trunk disease in China, with a recent disease outbreak. To reveal the genetic diversity and explore the origin of B. dothidea, six novel microsatellite markers were developed and used for the genotyping of 151 isolates obtained from China and overseas. The results demonstrated the high genetic diversity of the B. dothidea populations. Bayesian cluster analysis separated the total B. dothidea isolates into five genetic populations. B. dothidea isolates from Chinese grapevines were observed to share alleles with isolates from different hosts within China and from grapevines growing overseas, indicating both endemic host shifts and exotic introduction. In addition, unique pathogen genotypes were identified in Chinese grapevine isolates. Hence, we infer that B. dothidea isolates from multiple origins are contributing to the dieback and canker outbreak currently occurring in China. (C) 2018 The Authors. Published by Elsevier Ltd.

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