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Evidence for a novel partitivirus isolated from the entomopathogenic nematode Steinernema ceratophorum

文献类型： 外文期刊

作者： Wang, Shuangchao;Ahmed, Irfan;Li, Xianhui;Nie, Jianhua;Guo, Lihua

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期刊名称： ARCHIVES OF VIROLOGY

ISSN： 0304-8608

年卷期： 2022 年

页码：

收录情况： SCIE（2022版）

摘要： Nematodes are abundant, but little is known about their viruses. In this study, we report a novel partitivirus isolated from the entomopathogenic nematode species Steinernema ceratophorum, named Steinernema ceratophorum partitivirus 1 (ScPV-1). The complete genome of ScPV-1 comprises two dsRNA segments, dsRNA1 (2352 bp) and dsRNA2 (2196 bp). Each dsRNA contains a single open reading frame (ORF), encoding a putative RNA-dependent RNA polymerase (RdRp) and a coat protein (CP), respectively. The sequences of the RdRp and CP showed the highest similarity (47% and 33% identity, respectively) to Plasmopara viticola associated partitivirus 7 (PvAP-7). A multiple sequence alignment and phylogenetic analysis of the RdRp of ScPV-1 and other selected viruses indicated that ScPV-1 is a new member of the genus Betapartitivirus in the family Partitiviridae.

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