Notes on Genus: Seadornavirus

icosahedra

Type member: Kadipiro virus

Contents

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

General Description

This is one of the animal virus genera in the family Reoviridae. Members were previously classified as subgroup B of the genus Coltivirus with which they share some similarity. Both genera have 12 genome segments but in the genus Seadornavirus the total genome is smaller, the segment sizes are more evenly spaced than in the coltiviruses and the viruses have been isolated from mosquitoes rather than ticks. The name reflects their position as South eastern Asia dodeca RNA viruses.

Morphology

Virions isometric (icosahedral), 60-80 nm in diameter, with two concentric capsid shells surrounding a core of c.50nm diameter. The particle surface is relatively smooth.

Genome

Linear, double stranded RNA in 12 segments. Each virion contains a single copy of the entire genome. Total genome c.21000 nucleotides long.

Genus Genomic Organization

Each segment has a single ORF. The RNA polymerase is encoded by the largest segment, but the functions of most of the other encoded proteins have still to be determined.

Type Member Genomic Organization