Identification, Molecular Characterization, and Biology of a Novel <i>Quadrivirus</i> Infecting the Plant Fungus <i>Allocryptovalsa sichuanensis</i>.

ABSTRACT: A novel double-stranded RNA (dsRNA) virus was isolated and described from strain ZZZ210557 of plant endophyte Allocryptovalsa sichuanensis. The dsRNA virus contains four dsRNA segments, dsRNA1 to dsRNA4, with a size range of 3.8 to 5.1 kbp. Each possesses a single large ORF and is encapsulated in isometric particles approximately 42-47 nm in diameter. Notably, the dsRNA3 encoded sequence revealed modest similarities to the amino acid sequences of RdRps predicted from the nucleotide sequences of known and suspected members of the family Quadriviridae. Phylogenetic analysis of the putative RdRp with the corresponding proteins of other quadriviruses revealed that the dsRNA virus is a new member belonging to the family Quadriviridae, tentatively named Allocryptovalsa si

SUBMITTER: Xie Y 

PROVIDER: S-EPMC11860902 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature