ICTV Virus Taxonomy Profile: Fusariviridae 2024

Abstract

Fusariviridae is a family of mono-segmented, positive-sense RNA viruses with genome sizes of 5.9–10.7 kb. Most genomic RNAs are bicistronic, but exceptions have up to four predicted ORFs. In bicistronic genomes, the 5′-proximal ORF codes for a single protein with both RNA-directed RNA polymerase (RdRP) and RNA helicase (Hel) domains; little is known about the protein encoded by the second ORF. Fusarivirids do not appear to form virions. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the family Fusariviridae, which is available at ictv.global/report/fusariviridae.