文献类型： 外文期刊
第一作者： Zou, Cheng-Wu
作者： Zou, Cheng-Wu;Meng, Jiao-Rong;Yao, Zi-Ting;Zhang, Lei;Wang, Zhi-Qiang;Chen, Bao-Shan;Zou, Cheng-Wu;Meng, Jiao-Rong;Yao, Zi-Ting;Zhang, Lei;Wang, Zhi-Qiang;Chen, Bao-Shan;Wei, Ben-Hui
作者机构：
关键词： Yam mild mosaic virus (YMMV); Genetic diversity; Genome recombination
期刊名称：PHYTOPATHOLOGY RESEARCH （ 影响因子：3.955； 五年影响因子：3.955 ）
ISSN： 2096-5362
年卷期： 2020 年 2 卷 1 期
页码：
收录情况： SCI
摘要： Yam mild mosaic virus (YMMV) is prevalent in yams (Dioscorea spp.) worldwide. To gain an insight into the genetic diversity and molecular evolution of YMMV, 89 isolates from West Africa, Asia, South Pacific, and America were analyzed phylogenetically by using sequence between the 3 ' -terminal of the coding region of the coat protein and the 5 ' -terminal of non-coding region at the 3 ' end of the YMMV genome. The results revealed that there was a significant genetic diversity among isolates and a clear correlation between the coat protein gene sequence and the geographical origin of YMMV isolates. Of particular, YMMV isolates from North China and South China fell into two different groups. Furthermore, full genome comparison identified four chimeric genome patterns and six putative recombination signals representing four recombination events were detected among 12 genomes of independent isolates from China and Brazil, suggesting a high frequency of genome recombination event.
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