Aquareovirus

Aquareovirus is a genus of viruses, in the family Reoviridae, in the subfamily Spinareovirinae. Fish, shellfish, and crustacean species serve as natural hosts. There are currently seven species in this genus including the type species Aquareovirus A. In general, Aquareoviruses have low or no pathogenicity for fish. However, some cause hemorrhagic disease, hepatitis and pancreatitis. Grass carp hemorrhage virus (causes hemorrhagic disease of grass carp) is the most pathogenic Aquareovirus.[1][2]

Aquareovirus
Virus classification
(unranked):	Virus
Realm:	Riboviria
Kingdom:	Orthornavirae
Phylum:	Duplornaviricota
Class:	Resentoviricetes
Order:	Reovirales
Family:	Reoviridae
Subfamily:	Spinareovirinae
Genus:	Aquareovirus
Type species
Aquareovirus A

Taxonomy

Group: dsRNA

Order: Reovirales

• Family: Reoviridae

  • Sub-Family: Spinareovirinae

    • Genus: Aquareovirus

      • Aquareovirus A
      • Aquareovirus B
      • Aquareovirus C
      • Aquareovirus D
      • Aquareovirus E
      • Aquareovirus F
      • Aquareovirus G

[2]

Structure

Viruses in Aquareovirus are non-enveloped, with icosahedral geometries, and T=13, T=2 symmetry. The diameter is around 75 nm. Genomes are linear and segmented, around 4.0kb in length. The genome codes for 12 proteins.[1]

Genus	Structure	Symmetry	Capsid	Genomic arrangement	Genomic segmentation
Aquareovirus	Icosahedral	T=13, T=2	Non-enveloped	Linear	Segmented

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment to host receptors, which mediates endocytosis. Replication follows the double-stranded RNA virus replication model. Double-stranded rna virus transcription is the method of transcription. The virus exits the host cell by monopartite non-tubule guided viral movement. Fish, shellfish, and crustacean species serve as the natural host.[1]

Genus	Host details	Tissue tropism	Entry details	Release details	Replication site	Assembly site	Transmission
Aquareovirus	Aquatic vertebrates: fish; aquatic invertebrates: shellfish; aquatic invertebrates: crustaceans	None	Cell receptor endocytosis	Cell death	Cytoplasm	Cytoplasm	Passive diffusion

References

1. "Viral Zone". ExPASy. Retrieved 15 June 2015.
2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.

External links

• Viralzone: Aquareovirus
• ICTV