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Variation between Turnip mosaic virus isolates in Zhejiang Province, China and evidence for recombination

文献类型： 外文期刊

作者： Chen, JP 1 ; Chen, JP 1 ; Adams, MJ 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Dept Virol, Hangzhou 310021, Peoples R China

关键词： Turnip mosaic virus;phylogenetic tree;homologous recombination

期刊名称：JOURNAL OF PHYTOPATHOLOGY （ 影响因子：1.789； 五年影响因子：1.574 ）

ISSN： 0931-1785

年卷期： 2002 年 150 卷 3 期

页码：

收录情况： SCI

摘要： The 3'-terminal sequences (c. 1700 nt) of the RNA genome of 10 Turnip mosaic virus (TuMV) isolates from different hosts in Zhejiang province, China, were determined. Phylogenetic analysis of the coat protein nucleotide sequences revealed that most TuMV sequences fell into two distinct clusters. The Chinese isolates B1-B4 (from Brassica spp.) were similar and placed in the largest group (Group 1), while the isolates R1-R6 (from Raphanus) were usually placed in a distinct but smaller group (Group 2). There were only approximately 90% identical nucleotides between the two groups. However, one isolate (R5) showed evidence of recombination in that the region between nucleotides 430 and 450, from the start of the coat protein gene and its 3'-terminus, was a Group 1 type.

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