Bean common mosaic virus isolates causing different symptoms in asparagus bean in China differ greatly in the 5 '-parts of their genomes

文献类型： 外文期刊

第一作者： Zheng, HY

作者： Zheng, HY;Chen, J;Chen, JP;Adams, MJ;Hou, MS

作者机构：

期刊名称：ARCHIVES OF VIROLOGY （ 影响因子：2.574； 五年影响因子：2.466 ）

ISSN： 0304-8608

年卷期： 2002 年 147 卷 6 期

页码：

收录情况： SCI

摘要： Potyvirus isolates from asparagus bean (Vigna sesguipedalis) plants in Zhejiang province, China, caused either rugose and vein banding mosaic symptoms (isolate R) or severe yellowing (isolate Y) in this host, but were otherwise similar in host range. Both isolates were completely sequenced and shown to be isolates of Bean common mosaic virus (BCMV). The complete sequences were 9992 (R) or 10062 (Y) nucleotides long and shared 91.7% identical nucleotides (93.2% identical amino acids) in their genomes and were more distantly related to the BCMV-Peanut stripe virus sequence (PStV). The isolates were much less similar to one another in the 5'-UTR and the N-terminal region of the P 1 protein. In the P1, isolate Y was closer to PStV (76.1% identical amino acids) than to isolate R (64.8%). Phylogenetic analyses of the coat protein region showed that the new isolates grouped with other isolates from Vigna spp., forming the blackeye cowpea mosaic strain subgroup of BCMV with 94-98% nucleotides (96-99% amino acids) identical to one another and about 90% identity to other BCMV isolates. Other significant subgroupings amongst published BCMV isolates were detected.

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