Molecular characterization of a novel victorivirus infecting Corynespora cassiicola

• Published in: Archives of virology Vol. 167; no. 5; pp. 1365 - 1368
• Main Authors: Liu, Mingming, Ni, Yunxia, Zhao, Hui, Liu, Xintao, Jia, Min, Liu, Hongyan, Tian, Baoming
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.05.2022; Springer Nature B.V
• Subjects: Annotated Sequence Record; Ascomycota; Biomedical and Life Sciences; Biomedicine; Coat protein; Corynespora cassiicola; DNA-directed RNA polymerase; Double-stranded RNA; Genome, Viral; Infectious Diseases; Medical Microbiology; Nucleotide sequence; Open Reading Frames; Phylogeny; RNA polymerase; RNA, Double-Stranded; RNA, Viral - genetics; RNA-Dependent RNA Polymerase - genetics; RNA-directed RNA polymerase; Totiviridae; Viral Proteins - chemistry; Viral Proteins - genetics; Virology; dsRNA; Corynespora cassiicola; Victorivirus
• ISSN: 0304-8608; 1432-8798
• DOI: 10.1007/s00705-022-05394-x

A novel victorivirus was detected in an isolate of Corynespora cassiicola strain 20180909-03 and was named "Corynespora cassiicola victorivirus 1" (CcVV1). The complete genome sequence of this virus is 5140 bp in length and contains 57% GC with two large open reading frames (ORFs) overlapping at the tetranucleotide AUGA. The ORFs were predicted to encode a coat protein (CP) and an RNA-dependent RNA polymerase (RdRp), respectively, which are conserved in dsRNA fungal viruses of the family Totiviridae . Comparison and phylogenetic analysis of the deduced amino acid sequences of RdRp and CP showed that CcVV1 is a new member of the genus Victorivirus . This is the first report of a genomic sequence of a victorivirus infecting Corynespora cassiicola .