Sogatella furcifera hepe-like virus: First member of a novel Hepeviridae Glade identified in an insect

文献类型： 外文期刊

第一作者： Zhang, Peipei

作者： Zhang, Peipei;Liu, Wenwen;Wang, Xifeng

作者机构：

关键词： Sogatella furcifera; Insect virus; Hepeviridae; Single-stranded RNA; NGS; Hemiptera

期刊名称：VIRUS RESEARCH （ 影响因子：3.303； 五年影响因子：3.445 ）

ISSN： 0168-1702

年卷期： 2018 年 250 卷

页码：

收录情况： SCI

摘要： A novel virus was identified in the white-backed planthopper (Sogatella furcifera, Hemiptera: Delphacidae) and tentatively named Sogatella furcifera hepe-like virus (SfHeV). Its genome is a linear, single-stranded monopartite RNA, 7,312 nucleotides (nt) long with a 66-nt 5' UTR, 54-nt 3' UTR, and 28-nt polyA, showing typical genomic features of viruses in the family Hepeviridae, but highly divergent from known members in the family, with amino acid sequence identities of only 18.9-23% (ORF1), 13.1-18.8% (ORF2) and 1.9-11% (ORF3). Phylogenetic analysis revealed that SfHeV was closer to cutthroat trout virus (CTV), but did not cluster with any members of the family. SfHeV is the first hepe-like virus identified in a hemipteran insect and was detected in all developmental stages suggesting the presence of some level of vertical transmission. On the basis of these data, we propose that SfHeV represents a novel Glade in the family Hepeviridae and tentatively name the genus Insecthepevirus.

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