ArticleArchives of virology2024
Complete genome sequence of a novel gammapartitivirus from Penicillium oxalicum RCEF7482.
Article in Archives of virology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors at 1 institution in 1 country.
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Abstract
Penicillium oxalicum, an important biocontrol fungus in China, has been a subject of extensive study due to its role in combating various pathogenic fungi. Despite the prevalence of mycoviruses with double-stranded (ds) RNA genomes in filamentous fungi, there has been no screening of mycoviruses in P. oxalicum. In this report, we describe the identification and characterization of a novel dsRNA virus isolated from P. oxalicum, designated as "Penicillium oxalicum partitivirus 1" (PoPV1). The genome of PoPV1 consists of two dsRNA segments, dsRNA1 (1,770 bp) and dsRNA2 (1,584 bp), each containing a single open reading frame (ORF): ORF1 and ORF2. Comparative analysis revealed that the RdRp and CP amino acid sequences of PoPV1 share the highest identity (89.18% and 73.97%, respectively) with those of Penicillium aurantiogriseum partitivirus 1 (PaPV1). Motif analysis based on RdRp amino acid sequences places PoPV1 in the genus Gammapartitivirus within the family Partitiviridae, with a distinctive motif VI (R/KV/ILGDD). Phylogenetic analysis further established a close relationship of PoPV1 to PaPV1, forming a unique clade among the gammapartitiviruses. Consequently, we propose that Penicillium oxalicum partitivirus 1 represents a new species in the genus Gammapartitivirus. This is the first report of a dsRNA virus in P. oxalicum.
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