Complete genome sequence of a novel chrysovirus infecting Aspergillus terreus

Arch Virol. 2023 Jul 20;168(8):209. doi: 10.1007/s00705-023-05839-x.

Abstract

A double-stranded RNA (dsRNA) mycovirus was obtained from Aspergillus terreus strain HJ3-26 and designated "Aspergillus terreus chrysovirus 1" (AtCV1). It consists of four dsRNA segments (dsRNA1-4) with lengths of 3612 bp, 3132 bp, 3153 bp, and 3144 bp, respectively. Sequence analysis showed that dsRNA1 encodes an RNA-dependent RNA polymerase (RdRp), dsRNA2 encodes a capsid protein, and both dsRNA3 and dsRNA4 encode hypothetical proteins. Phylogenetic analysis of the RdRp suggested that AtCV1 is a member of a new species of the genus Alphachrysovirus in the family Chrysoviridae. This is the first chrysovirus obtained from A. terreus.

MeSH terms

  • Aspergillus
  • Fungal Viruses* / genetics
  • Genome, Viral
  • Open Reading Frames
  • Phylogeny
  • RNA Viruses* / genetics
  • RNA, Double-Stranded / genetics
  • RNA, Viral / genetics
  • RNA-Dependent RNA Polymerase / genetics

Substances

  • RNA-Dependent RNA Polymerase
  • RNA, Double-Stranded
  • RNA, Viral

Supplementary concepts

  • Aspergillus terreus