Abstract
Sclerotinia sclerotiorum ourmiavirus 17 (SsOV17) was isolated from the hypovirulent strain GF3 of Sclerotinia sclerotiorum. The genome of SsOV17 is 2,802 nt in length and contains a single long open reading frame (ORF) flanked by a short structured 5'-untranslated region (5'-UTR) (28 nt) and a long 3'-UTR (788 nt), respectively. The ORF encodes a protein with 663 amino acids and a predicted molecular mass of 75.0 kDa. A BLASTp search indicated that the protein encoded by SsOV17 is closely related to the putative RNA-dependent RNA polymerase (RdRp) of Sclerotinia sclerotiorum ourmiavirus 13 (71% identity). A multiple sequence alignment indicated that eight conserved amino acid motifs were present in the RdRp conserved region of SsOV17. Phylogenetic analysis demonstrated that SsOV17 clustered with members of the genus Botoulivirus.
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