Notes on Genus: Quadrivirus

icosahedra

Type member: Rosellinia necatrix quadrivirus 1

Contents

Members of this Genus
General Description
Morphology
Electron Micrograph
Genome
Genus Genomic Organization
Genome Map
Type Member Genomic Organization
All Known Sequences
Curated Sequences

General Description

The genus Quadrivirus is the only genus in the family Quadriviridae. It is named because the genome has four segments.

Morphology

Virions isometric (icosahedral), not enveloped, about 48 nm in diameter.

Genome

Quadripartite, linear double-stranded RNA, with segments ranging in size from 3.7 to 4.9 kbp. A terminal sequence of seven 5’- and fourteen 3’-nucleotides is strictly conserved in all segments.

Genus Genomic Organization

There are four RNAs, each encoding a single protein.

Type Member Genomic Organization