Avisivirus

Avisivirus
Virus classification
(unranked):	Virus
Realm:	Riboviria
Kingdom:	Orthornavirae
Phylum:	Pisuviricota
Class:	Pisoniviricetes
Order:	Picornavirales
Family:	Picornaviridae
Genus:	Avisivirus

Avisivirus is a genus of viruses in the order Picornavirales, in the family Picornaviridae. Turkey serve as natural hosts. There are three species in this genus.[1][2]

Taxonomy

The genus contains the following three species:[2]

• Avisivirus A
• Avisivirus B
• Avisivirus C

Structure

Viruses in Avisivirus are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30 nm. Genomes are linear and non-segmented, around 7.5kb in length.[1]

Genus	Structure	Symmetry	Capsid	Genomic arrangement	Genomic segmentation
Avisivirus	Icosahedral	Pseudo T=3	Non-enveloped	Linear	Monopartite

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Translation takes place by ribosomal skipping. The virus exits the host cell by lysis, and viroporins. Turkey serve as the natural host.[1]

Genus	Host details	Tissue tropism	Entry details	Release details	Replication site	Assembly site	Transmission
Avisivirus	Turkey	None	Unknown	Unknown	Cytoplasm	Cytoplasm	Unknown

References

1. "Viral Zone". ExPASy. Retrieved 13 August 2015.
2. "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 20 May 2021.

External links

• Viralzone: Avisivirus
• ICTV