Evolutionary characterization of two Cucumber mosaic virus isolates infecting Pinellia ternata of Araceae family

HaiYan Wang; HuaRong Zhang; ZhiYou Du; Rong Zeng; JiShuang Chen

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Evolutionary characterization of two Cucumber mosaic virus isolates infecting Pinellia ternata of Araceae family

HaiYan Wang 1 #,HuaRong Zhang 2,ZhiYou Du 1,Rong Zeng 1,JiShuang Chen 1 *

1.Institute of Bioengineering, Zhejiang Sci-Tech University

2.Life Science Faculty, Zhejiang University

*Correspondence author

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Funding: 国家自然科学基金（No.30671361）

Opened online:26 February 2009

Accepted by: none

Citation: HaiYan Wang,HuaRong Zhang,ZhiYou Du.Evolutionary characterization of two Cucumber mosaic virus isolates infecting Pinellia ternata of Araceae family[OL]. [26 February 2009] http://en.paper.edu.cn/en_releasepaper/content/29724

Two Cucumber mosaic virus (CMV) isolates，PHz-CMV and PGs-CMV, were obtained from naturally infected Pinellia ternata as a Chinese medicinal plant belonging to Araceae family. Phylogenetic analysis showed that the pinellia isolates formed an independent clade with high support within subgroup I. Pairwise comparison analysis showed that they had high divergence from subgroup strains of IA and IB, Remarkable Difference revealed their relationships with subgroup IA and IB. Along with their RNA3 5′UTRs analysis, it is demonstrated that they may have independent evolution. It is believed that host and geographical environment had impact on evolutional types of this virus. A novel CMV subgroup is suggested based on the discussion.

Keywords:Cucumber mosaic virus;PHz-CMV;PGs-CMV;complete sequence analysis

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