Leafhopper Psammotettix alienus hosts chuviruses with different genomic structures

文献类型： 外文期刊

第一作者： Han, Xue

作者： Han, Xue;Wang, Hui;Wu, Nan;Liu, Wenwen;Wang, Xifeng;Cao, Mengji

作者机构：

关键词： Psammotettix alienus; insect virus; Mivirus; next-generation sequencing (NGS); molecular detection

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： 2020 年 285 卷

页码：

收录情况： SCI

摘要： The leafhopper Psammotettbc alienus causes serious economic losses by directly sucking the plant sap and by transmitting plant viruses. Here, we obtained the full-genomic sequence of a novel chuvirus, Hancheng leaf-hopper mivirus (HCLeV), using RNA sequencing (RNA-seq) and rapid amplification of cDNA ends (RACE). The full genome of HCLeV comprises 9,852 nucleotides (nt) and includes two open reading frames (ORFs), which encode nucleocapsid and large polymerase protein, respectively. Its genomic features are similar to that of Tacheng tick virus 5, a member of chuviruses. However, HCLeV had only 36.6-44.4% identities in amino acid sequence for polymerase and 27.1-44.2% identities for nucleocapsid protein with chuviruses and other viruses in the order Mononegavirales and Jingchuvirales. Interestingly, we found this leafhopper can host two chuvirus species with different genomic structures. The discovery of this new virus potentially adds a new species to the family Chuviridae, and its new genomic structural form indicates broader genomic diversity among the chuviruses.

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