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Sequence analysis demonstrates that Onion yellow dwarf virus isolates from China contain a P3 region much larger than other potyviruses

文献类型: 外文期刊

作者: Chen, J 1 ; Adams, MJ 2 ; Zheng, HY 2 ; Chen, JP 2 ;

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

2.Zhejiang Acad Agr Sci, Virol & Biotechnol Dept, Hangzhou, Peoples R China; Rothamsted Res, Plant Pathogen Interact Div, Harpenden, Herts, England

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: 2003 年 148 卷 6 期

页码:

收录情况: SCI

摘要: The complete sequence of an isolate of Onion yellow dwarf virus (OYDV) from Yuhang, Zhejiang province, China, was determined. It was 10538 nts in length and was predicted to encode a polyprotein 3403 amino acids (aa) long with a calculated M-r of 385.1 kDa. The predicted P3 protein (530 aa) was larger than that of any of the potyviruses sequenced to date (344-378 aa). The additional sequence occurs at the N-terminus of the protein, does not represent a duplication from elsewhere in the OYDV genome and could not be matched to any other sequences in the databases. Similar sequences were found in 4 other Chinese OYDV isolates. Phylogenetic analysis of the amino acid sequences of the polyprotein showed that OYDV is distantly related to Pea seed-borne mosaic virus and the potyviruses of grasses and cereals.

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