Simple sequence repeat markers reflect the biological phenotype differentiation and genetic diversity of Colletotrichum gloeosporioides strains from Capsicum annuum L. in China
Simple sequence repeat markers reflect the biological phenotype differentiation and genetic diversity of Colletotrichum gloeosporioides strains from Capsicum annuum L. in China
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DOI：
10.1111/jph.13041
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发表时间：
2021-09-01
影响因子：
1.5
通讯作者：
Tan, Xinqiu
中科院分区：
文献类型：
--
作者：
Chen, Yue;Zeng, Quan;Tan, Xinqiu
辣椒炭疽病是辣椒生产上最重要的病害之一。近年来的研究表明，来源于辣椒的炭疽菌具有丰富的遗传多样性。然而，对于辣椒的优势种胶孢炭疽菌，遗传多样性与生物学表型分化之间的关系尚不清楚。在此，我们建立了一个高度特异性的简单重复序列（SSR）-PCR系统，它显示了丰富的种内遗传多样性的测试胶孢炭疽菌菌株。此外，我们的特点是显着分化菌株的生物表型，包括它们的形态和产孢性状，以及它们的致病性。这些结果有助于阐明辣椒炭疽菌遗传多样性与生物学表型分化的关系。研究结果对辣椒炭疽病的防治和辣椒抗病育种具有重要意义。
Pepper anthracnose, caused by fungi of the Colletotrichum complex, is one of the most important diseases in pepper production. Recent studies have revealed the rich genetic diversity of different Colletotrichum species originating from Capsicum annuum L. However, for Colletotrichum gloeosporioides, the dominant species from Capsicum annuum L., the relationships between the genetic diversity and biological phenotype differentiation remain unclear. Here, we developed a highly specific simple sequence repeat (SSR)-PCR system, which showed rich intraspecific genetic diversity in the tested Colletotrichum gloeosporioides strains. Moreover, we characterized the biological phenotypes of significantly differentiated strains, including their morphological and sporulation traits, and their pathogenicity. These results help us to elucidate the relationship between genetic diversity and biological phenotype differentiation in Colletotrichum gloeosporioides strains from Capsicum annuum L. Our findings will be useful for the prevention and control of pepper anthracnose and for pepper resistance breeding.