Complete genome sequence of a novel botourmiavirus infecting the fungus Phomopsis asparagi.

Arch Virol

School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya, 572025, China.

Published: July 2024

Here, we report a novel ourmia-like mycovirus, named "Phomopsis asparagi magoulivirus 1" (PaMV1), derived from the phytopathogenic fungus Phomopsis asparagi. The genome of PaMV1 consists of a positive-sense single-stranded RNA (+ ssRNA) that is 2,639 nucleotides in length, with a GC content of 57.13%. It contains a single open reading frame (ORF) encoding a putative RNA-dependent RNA polymerase (RdRp) consisting of 686 amino acids with a molecular mass of 78.57 kDa. Phylogenetic analysis based on RdRp sequences revealed that PaMV1 grouped together with Diaporthe gulyae magoulivirus 1 (DgMV1) in a distinct clade. Sequence comparisons and phylogenetic analysis suggest that PaMV1 is a novel member of the genus Magoulivirus, family Botourmiaviridae.

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http://dx.doi.org/10.1007/s00705-024-06084-6DOI Listing

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