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Differences in cultivar response and complete sequence analysis of two isolates of wheat yellow mosaic bymovirus in China

文献类型： 外文期刊

作者： Chen, J 1 ; Chen, JP 2 ; Yang, JP 2 ; Cheng, Y 2 ; Diao, A 2 ; Adams, MJ 2 ; Du, J 2 ;

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

2.Zhejiang Acad Agr Sci, Dept Virol, Hangzhou 310021, Peoples R China; Zhejiang Univ, Dept Biol Sci & Technol, Hangzhou 310027, Peoples R China; AFRC, Inst Arable Crops Res, Dept Plant Pathol, Harpenden AL5 2JQ, Herts, England

关键词： amino acid sequence;cultivar response;nucleotide sequence;wheat yellow mosaic virus isolate

期刊名称：PLANT PATHOLOGY （ 影响因子：2.59； 五年影响因子：2.924 ）

ISSN： 0032-0862

年卷期： 2000 年 49 卷 3 期

页码：

收录情况： SCI

摘要： Seeds of selected European and Japanese winter wheat cultivars were grown at two experimental sites in China, namely Yaan, Sichuan province (YA), and Yangzhou, Jiangsu province (YZ), where wheat yellow mosaic bymovirus (WYMV) was severe. There were some differential responses of the cultivars to the virus isolates present at the two sites. The complete nucleotide sequence of both RNAs of both virus isolates was determined. Their genome organization was identical to that reported for a Japanese isolate and the sizes were very similar. Nucleotide comparisons demonstrated that parts of the CI and NIa coding regions on RNA1 and the N-terminal part of the P2 coding region on RNA2 were particularly variable, while substantially conserved regions occurred in the 3' UTR of RNA2, the 7K, one part of the CI and parts of the NIb and coat protein. It seems unlikely that differences in the 7K and NIa-VPg proteins are responsible for virulence differences and the CI and NIb regions were considered the most promising for further study.

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[1]Sequence of a second isolate of Chinese wheat mosaic furovirus. Yang, J,Chen, J,Chen, J,Jiang, H,Zhao, Q,Adams, MJ. 2001

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