Two distinct begomoviruses associated with an alphasatellite coinfecting Emilia sonchifolia in Thailand

文献类型： 外文期刊

第一作者： Zhao, Liling

作者： Zhao, Liling;Zhong, Jing;Zhang, Xiaoyun;Yin, Yueyan;Li, Tingting;Ding, Ming

作者机构：

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： 2018 年 163 卷 6 期

页码：

收录情况： SCI

摘要： Emilia sonchifolia is a traditionally used medicinal plant that is widespread in tropical and subtropical regions of the world. Yellow vein symptoms were observed in E. sonchifolia plants in fields in the county of Koh Samui, Surat Thani Province, Thailand, in August 2015. Two distinct begomoviruses, designated TH4872-6 and TH4872-9, and an associated alphasatellite were obtained from an E. sonchifolia leaf sample (TH4872). Sequence analysis showed that the full-length sequence of TH4872-6 was most closely related to that of ageratum yellow vein China virus (AYVCNV), with 85.7% identity, suggesting that it is a novel begomovirus, while the TH4872-9 sequence closely resembled cotton leaf curl Multan virus (CLCuMuV) with 99.1% identity. The alphasatellite sequence showed the highest nucleotide sequence identity (92.8%) to an isolate of tobacco curly shoot alphasatellite (TbCSA) originating from China. Recombination analysis revealed that the isolate TH4872-6 is a potential recombinant begomovirus, derived from ageratum yellow vein virus (AYVV) and tobacco leaf curl Thailand virus (TbLCTHV). This study represents the first report of begomoviruses identified in E. sonchifolia in Thailand.

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