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Molecular characterization of two recombinant isolates of telosma mosaic virus infecting Passiflora edulis from Fujian Province in China

文献类型： 外文期刊

作者： Xie, Lixue 1 ; Gao, Fangluan 2 ; Shen, Jianguo 3 ; Zhang, Xiaoyan 1 ; Zhang, Shan 1 ; Zhang, Lijie 1 ; Li, Tao 1 ;

作者机构： 1.Fujian Acad Agr Sci, Fruit Res Inst, Fuzhou, Peoples R China

2.Fujian Agr & Forestry Univ, Inst Plant Virol, Fuzhou, Peoples R China

3.Technol Ctr Fuzhou Customs Dist, Fujian Key Lab Technol Res Inspect & Quarantine, Fuzhou, Peoples R China

关键词： Molecular characterization; Recombinant isolate; Telosma mosaic virus; Passiflora edulis

期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）

ISSN： 2167-8359

年卷期： 2020 年 8 卷

页码：

收录情况： SCI

摘要： Telosma mosaic virus (TeMV) is an important plant virus causing considerable economic losses to passion fruit (Passiflora edulis) production worldwide, including China. In this study, the complete genome sequence (excluding the poly (A) tail) of two TeMV isolates, Fuzhou and Wuyishan, were determined to be 10,050 and 10,057 nucleotides, respectively. Sequence analysis indicated that Fuzhou and Wuyishan isolates share 78-98% nucleotide and 83-99% amino acid sequence identities with two TeMV isolates of Hanoi and GX, and a proposed new potyvirus, tentatively named PasFru. Phylogenetic analysis indicated that these TeMV isolates and PasFru were clustered into a monophyletic clade with high confidences. This indicated that PasFru and the four TeMV isolates should be considered as one potyvirus species. Two recombination breakpoints were identified within the CI and NIb genes of the Fuzhou isolate, and also within the P1 gene of the Wuyishan isolate. To the best of our knowledge, this is the first report of TeMV recombinants worldwide.

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