A Victorivirus from Fusarium asiaticum, the pathogen of Fusarium head blight in China
A Victorivirus was detected in isolate F16176 of the fungus Fusarium asiaticum, the causal agent of Fusarium head blight in China. The full genome sequence of the virus was sequenced and characterized. The complete cDNA sequence is 5,281 nucleotides long with 64.2% G + C content and contains two open reading frames (ORFs) that overlap at the pentanucleotide UAAUG. The two ORFs are predicted to encode coat protein (CP) and RNA-dependent RNA polymerase (RdRp), which are conserved among the dsRNA mycoviruses of the genus Victorivirus. Pairwise comparisons and phylogenetic analysis of the deduced amino acid sequences of RdRp indicated that this dsRNA mycovirus is a new virus belonging to the species Rosellinia necatrix victorivirus 1 in the family Totiviridae. This study is the first to report a full-length genomic sequence of a putative member of the genus Victorivirus in F. asiaticum.
This work was supported by the National Key R&D Program of China (Grant Nos. 2016YFD0300700/2016YFD0300706) and Special Fund for China Agricultural Research System (CARS-3-1).
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Conflict of interest
Wei Li, Yunlei Xia, Haotian Zhang, Xing Zhang and Huaigu Chen declare that he has no conflict of interest.
Research involving human participants and/or animals
This article does not contain any studies with human participants or animals performed by any of the authors
Informed consent was obtained from all individual participants included in the study.
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