生物
系统发育树
病毒学
遗传学
衣壳
植物病毒
病毒
RNA聚合酶
蛋白酶
核糖核酸
基因
酶
生物化学
作者
Robert A Alvarez Quinto,Melody Amao,Giovanna Müller,Segundo Fuentes,Samuel Grinstead,Irazema Fuentes-Bueno,Annelien Roenhorst,Marcel Westenberg,Marleen Botermans,Jan Kreuze,Dimitre Mollov
出处
期刊:Phytopathology
[Scientific Societies]
日期:2023-09-01
卷期号:113 (9): 1716-1728
被引量:2
标识
DOI:10.1094/phyto-11-22-0449-v
摘要
A previously uncharacterized torradovirus species infecting potatoes was detected by high-throughput sequencing from field samples from Peru and in customs intercepts in potato tubers that originated from South America in the United States of America and the Netherlands. This new potato torradovirus showed high nucleotide sequence identity to an unidentified isometric virus (SB26/29), which was associated with a disease named potato rugose stunting in southern Peru characterized over two decades ago. Thus, this virus is tentatively named potato rugose stunting virus (PotRSV). The genome of PotRSV isolates sequenced in this study were composed of two polyadenylated RNA segments. RNA1 ranges from 7,086 to 7,089 nt and RNA2 from 5,228 to 5,230 nt. RNA1 encodes a polyprotein containing the replication block (helicase-protease-polymerase), whereas RNA2 encodes a polyprotein cleaved into a movement protein and the three capsid proteins (CPs). Pairwise comparison among PotRSV isolates revealed amino acid identity values greater than 86% in the protease-polymerase (Pro-Pol) region and greater than 82% for the combined CPs. The closest torradovirus species, squash chlorotic leaf spot virus, shares amino acid identities of ∼58 and ∼41% in the Pro-Pol and the combined CPs, respectively. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY 4.0 International license .
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