Fusarium oxysporum is a cosmopolitan plant pathogen that causes fusarium wilt and fusarium root rot in many economically important crops. There is still limited information about mycoviruses that infect F. oxysporum. Here, a novel mitovirus tentatively named "Fusarium oxysporum mitovirus 1" (FoMV1) was identified in F. oxysporum strain B2-10. The genome of FoMV1 is 2,453 nt in length with a predicted AU content of 71.6% and contains one large open reading frame (ORF) using the fungal mitochondrial genetic code. The ORF putatively encodes an RNA-dependent RNA polymerase (RdRp) of 723 aa with a molecular mass of 84.98 kDa. The RdRp domain of FoMV1 shares 29.01% to 68.43% sequence identity with the members of the family Mitoviridae. Phylogenetic analysis further suggested that FoMV1 is a new member of a distinct species in the genus Mitovirus.

中文翻译：

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来自植物病原真菌尖孢镰刀菌 (Fusarium oxysporum) 的新型有丝分裂病毒的完整基因组序列。

尖孢镰刀菌是一种全球性植物病原体，可导致许多重要经济作物发生枯萎病和镰刀菌根腐病。关于感染尖孢镰刀菌的真菌病毒的信息仍然有限。在这里，在尖孢镰刀菌 B2-10 株中发现了一种暂定名为“尖孢镰刀菌线粒体病毒 1”（FoMV1）的新型有丝分裂病毒。FoMV1 的基因组长度为 2,453 nt，预测的 AU 含量为 71.6%，并包含一个使用真菌线粒体遗传密码的大型开放阅读框 (ORF)。ORF 假定编码 723 个氨基酸的 RNA 依赖性 RNA 聚合酶 (RdRp)，分子量为 84.98 kDa。FoMV1 的 RdRp 结构域与线粒体病毒科的成员具有 29.01% 至 68.43% 的序列同一性。