Virus classification
Group: Group III (dsRNA)
Family: Quadriviridae
Genus: Quadrivirus
Type Species

Quadriviridae is a family of viruses. 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

Life Cycle

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
QuadrivirusFungiNoneUnknownCytoplasmic exchange; hyphal anastomosis; sporogenesisUnknownUnknownCytoplasmic exchange; hyphal anastomosis; sporogenesis


  1. 1 2 3 "Viral Zone". ExPASy. Retrieved 13 August 2015.
  2. 1 2 ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.
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