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Virus classification e
(unranked): Virus
Realm: Riboviria
(unranked): incertae sedis
Family: Barnaviridae
  • Barnavirus

Barnaviridae is a family of viruses. Cultivated mushroom serve as natural hosts. There are currently only one genus (Barnavirus) and one species in this family: the type species Mushroom bacilliform virus. Diseases associated with this family include: La France disease.[1][2]


Group: ssRNA(+)



Viruses in Barnaviridae are non-enveloped, with icosahedral and Bacilliform geometries, and T=1 symmetry. These viruses are about 50 nm long. Genomes are linear, around 4kb in length. The genome has 43 open reading frames.[1]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Barnavirus Icosahedral T=1 Non-enveloped Linear Monopartite

Life cycle[edit]

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded rna virus transcription is the method of transcription. Cultivated mushroom serve as the natural host.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Barnavirus Cultivated mushroom: agaricus bisporus None Horizontal; vertical Horizontal: via mycelium; horizontal: basidiospores Cytoplasm Cytoplasm Horizontal: via mycelium; horizontal: basidiospores


  1. ^ a b c "Viral Zone". ExPASy. Retrieved 12 June 2015.
  2. ^ a b ICTV. "Virus Taxonomy: 2014 Release". Retrieved 12 June 2015.

External links[edit]