文献类型： 外文期刊
作者： Chen, J 1 ; Zheng, HY 2 ; Antoniw, JF 2 ; Adams, MJ 2 ; Chen, JP 2 ; Lin, L 2 ;
作者机构： 1.Zhejiang Acad Agr Sci, Virol & Biotechnol Dept, Hangzhou 310021, Peoples R China
2.Zhejiang Acad Agr Sci, Virol & Biotechnol Dept, Hangzhou 310021, 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： 2004 年 149 卷 3 期
页码：
收录情况： SCI
摘要： Degenerate primers for RT-PCR were designed and used to amplify genome fragments (c. 750 nt in the coat protein-ORF6 region) of allexiviruses from a total of 28 garlic samples from 24 provinces in China. Many samples contained more than one distinct sequence. A total of 60 different sequences were obtained. Phylogenetic analysis and two-way comparisons were used to assess the status of the sequences and to re-examine the criteria for distinguishing species within the genus. Most of the sequences could be allocated to either Garlic virus D or Garlic virus X on the basis of sequence similarity but some appeared to be intermediate between existing species. There were no sequences of Garlic virus C or Shallot virus X. A comparison with the related genera Carlavirus, Foveavirus and Potexvirus suggests that the published allexivirus species demarcation criteria may have been drawn too tightly and should be re-examined.
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