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Complete genome sequence of a novel fusarivirus from the phytopathogenic fungus Corynespora cassiicola.
- Source :
-
Archives of Virology . May2022, Vol. 167 Issue 5, p1375-1379. 5p. - Publication Year :
- 2022
-
Abstract
- Corynespora cassiicola is an important phytopathogenic fungus that severely impairs crop production. Here, we report the molecular characterization of a novel positive-sense single-stranded RNA (+ssRNA) mycovirus, Corynespora cassiicola fusarivirus 1 (CcFV1), isolated from C. cassiicola strain 20200826-3-1. Excluding the poly(A) tail, the genome of the virus is 6491 nt in length and contains three putative open reading frames (ORFs). The large ORF1 encodes a polypeptide of 1524 aa with a conserved RNA-dependent RNA polymerase (RdRp) domain and a helicase (Hel) domain. BLASTp analysis showed that CcFV1 ORF1 has the highest similarity to Setosphaeria turcica fusarivirus 1 (StFV1, 50.45% identity, E-value 0.0). ORF2 encodes a polypeptide with a conserved chromosome segregation ATPase (Smc) domain. The smaller ORF3 encodes a polypeptide with an unknown function. Phylogenetic analysis based on the ORF1- encoded polypeptide showed that CcFV1 is phylogenetically related to members of the newly proposed family "Fusariviridae". Thus, we suggest that CcFV1 might be a novel member of the family "Fusariviridae", and is the first to be discovered in C. cassiicola. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03048608
- Volume :
- 167
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Archives of Virology
- Publication Type :
- Academic Journal
- Accession number :
- 156495660
- Full Text :
- https://doi.org/10.1007/s00705-022-05428-4