Complete genome sequence of a novel dsRNA virus from the phytopathogenic fungus Fusarium oxysporum

文献类型: 外文期刊

第一作者: Wang, Jing

作者: Wang, Jing;Ni, Yunxia;Zhao, Hui;Liu, Xintao;Liu, Hongyan;Qiu, Rui;Li, Shujun

作者机构:

期刊名称:ARCHIVES OF VIROLOGY ( 影响因子:2.7; 五年影响因子:2.4 )

ISSN: 0304-8608

年卷期: 2024 年 169 卷 4 期

页码:

收录情况: SCI

摘要: Fusarium oxysporum is a widespread plant pathogen that causes fusarium wilt and fusarium root rot in many economically significant crops. Here, a novel dsRNA virus tentatively named "Fusarium oxysporum virus 1" (FoV1) was identified in F. oxysporum strain 3S-18. The genome of FoV1 is 2,944 nucleotides (nt) in length and contains two non-overlapping open reading frames (ORF1 and 2). The larger of these, ORF2, encodes an RNA-dependent RNA polymerase (RdRp) of 590 amino acids with a molecular mass of 67.52 kDa. ORF1 encodes a putative nucleocapsid protein consisting of 134 amino acids with a molecular mass of 34.25 kDa. The RdRp domain of FoV1 shares 60.00% to 84.24% sequence identity with non-segmented dsRNA viruses. Phylogenetic analysis further suggested that FoV1 is a new member of the proposed genus "Unirnavirus" accommodating unclassified monopartite dsRNA viruses.

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