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Virus classification e
(unranked): Virus
Realm: Riboviria
Phylum: incertae sedis
Family: Quadriviridae
Genus: Quadrivirus
Type species

Quadriviridae is a family of viruses with a single genus Quadrivirus. Fungi serve as natural hosts. There is currently only one species in this family: the type species Rosellinia necatrix quadrivirus 1.[1][2]


Group: dsRNA



Viruses in Quadriviridae are non-enveloped. The diameter is around 48 nm. Genomes are linear and segmented, around 16.8kb in length. The genome codes for 4 proteins.[1]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Quadrivirus Non-enveloped Linear Segmented

Life cycle[edit]

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. Fungi serve as the natural host.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Quadrivirus Fungi None Unknown Cytoplasmic exchange; hyphal anastomosis; sporogenesis Unknown Unknown Cytoplasmic exchange; hyphal anastomosis; sporogenesis


  1. ^ a b c "Viral Zone". ExPASy. Retrieved 13 August 2015.
  2. ^ a b ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.

External links[edit]