Analysis of the complete genomic sequence of a novel virus, areca palm necrotic spindle-spot virus, reveals the existence of a new genus in the family Potyviridae

文献类型： 外文期刊

第一作者： Yang, Ke

作者： Yang, Ke;Ran, Minyuan;Li, Zengping;Zheng, Li;Liu, Wenbo;Jin, Pengfei;Miao, Weiguo;Cui, Hongguang;Hu, Meijiao;Zhou, Peng;Shen, Wentao

作者机构：

期刊名称：ARCHIVES OF VIROLOGY （ 影响因子：2.574； 五年影响因子：2.466 ）

ISSN： 0304-8608

年卷期： 2018 年 163 卷 12 期

页码：

收录情况： SCI

摘要： A novel virus, tentatively named areca palm necrotic spindle-spot virus (ANSSV), was identified in Areca catechu L. in Hainan, China, and its complete genomic sequence was determined. Its positive-sense single-stranded RNA genome is comprised of 9,437 nucleotides (nt), excluding the poly (A) tail, and contains one large open reading frame encoding a polyprotein of 3,019 amino acids (aa). A Blastp search showed that the polyprotein of ANSSV shared a maximum of 31%-32% aa sequence identity (with 86%-95% coverage) with all seven known macluraviruses. Nucleotide sequence comparison of the ORF of ANSSV to those of macluraviruses revealed identities ranging from 41.0% to 44.6%, which is less than the inter-genus identity values for the family Potyviridae. Phylogenetic analysis based on either the aa or nt sequence of the polyprotein did not cluster ANSSV into any established or unassigned genus of the family Potyviridae. Therefore, we suggest that ANSSV is the first member of a previously unrecognized genus of the family Potyviridae.

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