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Two novel totiviruses in the white-backed planthopper, Sogatella furcifera

文献类型： 外文期刊

作者： Zhang, Peipei 2 ; Liu, Wenwen 1 ; Cao, Mengji 3 ; Massart, Sebastien 2 ; Wang, Xifeng 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

2.Univ Liege, Gembloux AgrobioTech, Lab Phytopathol, Passage Deportes 2, B-5030 Gembloux, Belgium

3.Southwest Univ, Citrus Res Inst, Natl Citrus Engn Res Ctr, Chongqing 400712, Peoples R China

关键词： Sogatella furcifera; insect virus; totiviridae; double-stranded RNA; NGS; hemiptera

期刊名称：JOURNAL OF GENERAL VIROLOGY （ 影响因子：3.891； 五年影响因子：3.719 ）

ISSN： 0022-1317

年卷期： 2018 年 99 卷 5 期

页码：

收录情况： SCI

摘要： There is little information about commensal viruses in the white-backed planthopper, Sogatella furcifera, although it is an important agricultural insect. Here, two novel double-stranded RNA viruses related to the viruses in the family Totiviridae were identified using next-generation sequencing and tentatively named Sogatella furcifera totivirus 1 and 2 (SfTV1 and SfTV2). Their complete genomes consist of 6310 and 6303 nt, respectively, showing typical genomic features with viruses in the family Totiviridae. Identity, phylogenetic and conserved sequence analyses showed that SfTV1, SfTV2 and three other insect viruses may form a proposed novel genus of the family Totiviridae. Vertical transmission of the two viruses was highly efficient, and they were detected in all insect tissues and developmental stages, with the highest titres in the adult and in the haemolymph and reproductive organs. To our knowledge, this is the first report of viruses in the family Totiviridae found in a hemipteran insect.

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