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鉴定及分子特征分析茶油茶树相关 Totivirus 1。

Identification and molecular characterization of tea-oil camellia-associated totivirus 1.

机构信息

Key Laboratory of Poyang Lake Environment and Resource, School of Life Science, Ministry of Education, Nanchang University, Nanchang, 330031, Jiangxi, China.

National Germplasm Resources Laboratory, USDA-ARS, Beltsville, MD, 20705, USA.

出版信息

Arch Virol. 2021 Aug;166(8):2347-2351. doi: 10.1007/s00705-021-05058-2. Epub 2021 Apr 17.

Abstract

A novel dsRNA virus was identified by high-throughput sequencing from tea oil trees in China. Its complete genome of 4714 bp contains two open reading frames (ORFs). ORF1 encodes a putative coat protein (CP) of 702 amino acids (aa), and ORF2 codes for an RNA-dependent RNA polymerase (RdRp) of 855 aa. The virus shares the highest aa sequence identity of 45.21% in RdRp with taro-associated totivirus L (MN_119621), a member of the genus Totivirus in the family Totiviridae. Phylogenetic analysis of the aa sequences of the RdRp places the new virus in a group with other totiviruses, suggesting that this virus, which is provisionally named "tea-oil camellia-associated totivirus 1", should be considered a member of the genus Totivirus.

摘要

一种新型 dsRNA 病毒通过高通量测序在中国的茶油树中被发现。其完整的基因组长 4714bp,包含两个开放阅读框(ORF)。ORF1 编码一个推定的外壳蛋白(CP),由 702 个氨基酸(aa)组成,ORF2 编码一个 RNA 依赖性 RNA 聚合酶(RdRp),由 855 个氨基酸组成。该病毒在 RdRp 区的 aa 序列与芋属 totivirus L(MN_119621)的同源性最高,为 45.21%,芋属 totivirus L 是 Totiviridae 科 Totivirus 属的一个成员。RdRp 区 aa 序列的系统进化分析将新病毒置于与其他 totiviruses 相同的组中,表明该病毒暂命名为“茶油 camellia-associated totivirus 1”,应被视为 Totivirus 属的一员。

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