Notes on Family: Partitiviridae

icosahedra

Contents

Members of this Family
General Description
Morphology
Genome
Genera in the Family
All Known Sequences
Curated Sequences

General Description

This family is characterised by its icosahedral particles and its double stranded RNA genome with two components. The viruses are mostly associated with latent infections of fungal or plant hosts. The family is named from the Latin partitus, meaning "divided". Viruses of fungi previously in this family but with four genomic components are now placed in the family Chrysoviridae.

Morphology

Virions isometric, icosahedral, not enveloped, 30-40 nm in diameter and of two types.

Genome

Linear, double stranded RNA of two segments. The segments are of roughly similar size in the range 1.4-3.0kb each. Smaller defective or satellite RNAs may also be present. The segments are monocistronic: one encodes the coat protein and another an RNA polymerase.

Genera in the Family