一株引起小麦冠腐病的伪谷粒镰刀菌感染的两种新型有丝分裂病毒的特性研究

IF 2.5 4区 医学 Q3 VIROLOGY
Xin Pan, Yuan Xie, Shuwei Yan, Xiaoting Zhang, Xinxin Liu, Youzhou Jiao, Fei Gao
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引用次数: 0

摘要

小麦冠腐病(WCR)是由pseudograminearum镰刀菌(Fusarium pseudograminearum)引起的一种严重危害小麦生产的病害。在pseudograminearum Fusarium pseudograminearum mitovirus YY514-10-2中鉴定出两种分枝病毒,分别为“pseudograminearum Fusarium mitovirus 2”(FupgMV2)和“pseudograminearum Fusarium mitovirus 3”(FupgMV3)。这两个病毒基因组分别长2429和2450个核苷酸,每个基因组包含一个开放阅读框(ORF),编码724个氨基酸长的RNA依赖性RNA聚合酶(RdRp),氨基酸序列同源性为31.98%。BLASTp分析表明,FupgMV2的RdRp与镰刀菌有丝分裂病毒1的氨基酸序列一致性至少为88.84%,而FupgMV3的RdRp与镰刀菌有丝分裂病毒2的氨基酸序列一致性为80.19%。系统发育分析表明,FupgMV2和FupgMV3均属于有丝分裂病毒科unuamitvirus属。这是首次报道两种有丝分裂病毒由同一株植物致病性真菌F. pseudograminearum携带。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Characterization of two novel mitoviruses co infecting a single strain of Fusarium pseudograminearum causing wheat crown rot

Wheat crown rot (WCR), caused by Fusarium pseudograminearum, poses a threat to wheat production worldwide. Two mycoviruses, designated as "Fusarium pseudograminearum mitovirus 2" (FupgMV2) and "Fusarium pseudograminearum mitovirus 3" (FupgMV3), were identified in F. pseudograminearum strain YY514-10-2. The two viral genomes are 2,429 and 2,450 nucleotides long, each containing a single open reading frame (ORF) encoding a 724-amino-acid-long RNA-dependent RNA polymerase (RdRp), with 31.98% amino acid sequence identity to each other. BLASTp analysis revealed that the RdRp of FupgMV2 exhibits at least 88.84% amino acid sequence identity to that of Fusarium mitovirus 1, while the RdRp of FupgMV3 shows 80.19% amino acid sequence identity to that of Fusarium mitovirus 2. Phylogenetic analysis indicated that FupgMV2 and FupgMV3 both belong to the genus Unuamitovirus of the family Mitoviridae. This is the first report of two mitoviruses hosted by the same strain of the plant-pathogenic fungus F. pseudograminearum.

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来源期刊
Archives of Virology
Archives of Virology 医学-病毒学
CiteScore
5.10
自引率
7.40%
发文量
324
审稿时长
4.5 months
期刊介绍: Archives of Virology publishes original contributions from all branches of research on viruses, virus-like agents, and virus infections of humans, animals, plants, insects, and bacteria. Coverage spans a broad spectrum of topics, from descriptions of newly discovered viruses, to studies of virus structure, composition, and genetics, to studies of virus interactions with host cells, organisms and populations. Studies employ molecular biologic, molecular genetics, and current immunologic and epidemiologic approaches. Contents include studies on the molecular pathogenesis, pathophysiology, and genetics of virus infections in individual hosts, and studies on the molecular epidemiology of virus infections in populations. Also included are studies involving applied research such as diagnostic technology development, monoclonal antibody panel development, vaccine development, and antiviral drug development.Archives of Virology wishes to publish obituaries of recently deceased well-known virologists and leading figures in virology.
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