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- Title
Complete genome sequence of a novel mycovirus isolated from the phytopathogenic fungus Corynespora cassiicola in China.
- Authors
Wang, Yanfen; Zhao, Hang; Xue, Caiying; Xu, Chao; Geng, Yuehua; Zang, Rui; Guo, Yuxia; Wu, Haiyan; Zhang, Meng
- Abstract
A novel mycovirus, named "Corynespora cassiicola bipartite mycovirus 1" (CcBV1), was isolated from a phytopathogenic fungus, Corynespora cassiicola, the causal agent of rubber leaf fall disease. The nucleotide sequence of the complete genome of CcBV1, which consists of two double-stranded RNA (dsRNA) segments, was determined. The first dsRNA is 2,002 bp in length and contains a single open reading frame (ORF) encoding a putative RNA-dependent RNA polymerase (RdRp) (69 kDa), while the second is 1,738 bp in length and contains a single ORF encoding a hypothetical protein of unknown function, with an approximately molecular weight of 36 kDa. The amino acid sequences of the both deduced proteins are most similar (58.9% and 45.1% identity, respectively) to those of Cryphonectria parasitica bipartite mycovirus 1 (CpBV1). Phylogenetic analysis indicated that CcBV1 clusters together with CpBV1 and other unassigned dsRNA mycoviruses. To the best of our knowledge, this represents the first report of a mycovirus infecting C. cassiicola.
- Subjects
CHINA; FUNGAL viruses; PHYTOPATHOGENIC fungi; RNA replicase; NUCLEOTIDE sequencing; NUCLEOTIDE sequence; DOUBLE-stranded RNA
- Publication
Archives of Virology, 2020, Vol 165, Issue 10, p2401
- ISSN
0304-8608
- Publication type
Article
- DOI
10.1007/s00705-020-04723-2