Abstract
The Chrysoviridae is a family of small, isometric, non-enveloped viruses (40 nm in diameter) with segmented dsRNA genomes (typically four segments). The genome segments are individually encapsidated and together comprise 11.5–12.8 kbp. The single genus Chrysovirus includes nine species. Chrysoviruses lack an extracellular phase to their life cycle; they are transmitted via intracellular routes within an individual during hyphal growth, in asexual or sexual spores, or between individuals via hyphal anastomosis. There are no known natural vectors for chrysoviruses. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Chrysoviridae, which is available at www.ictv.global/report/chrysoviridae.
Highlights
The Chrysoviridae is a family of small, isometric, non-enveloped viruses (40 nm in diameter) with segmented dsRNA genomes
Virions accumulate in the cytoplasm From positive-sense transcripts of genomic dsRNAs Fungi One genus (Chrysovirus) including nine species
The capsid of Penicillium chrysogenum virus comprises 60 copies of a 109 kDa polypeptide arranged on a T=1 icosahedral lattice (Table 1, Fig. 1)
Summary
The Chrysoviridae is a family of small, isometric, non-enveloped viruses (40 nm in diameter) with segmented dsRNA genomes (typically four segments). Typical member: Penicillium chrysogenum virus ATCC 9480 (dsRNA1: AF296439; dsRNA2: AF296440; dsRNA3: AF296441; dsRNA4: AF296442), species Penicillium chrysogenum virus, genus Chrysovirus Virion Genome Replication Translation Host range Taxonomy Non-enveloped, 40 nm in diameter A total of 11.5–12.8 kbp of dsRNA in a quadripartite genome with each segment separately encapsidated Particles containing both dsRNA and ssRNA can be isolated from infected fungal hosts.
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