Tymovirus

Tymovirus
"Turnip yellow mosaic virus" on cabbage, found in Bělidla, Olomouc, Moravia, Czech Republic
Turnip yellow mosaic virus on cabbage, found in Bělidla, Olomouc, Moravia, Czech Republic
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Alsuviricetes
Order: Tymovirales
Family: Tymoviridae
Genus: Tymovirus

Tymovirus is a genus of viruses in the order Tymovirales, in the family Tymoviridae. Plants serve as natural hosts. There are 28 species in this genus.[1][2]

Taxonomy

The genus contains the following species:[2]

Structure

Viruses in Tymovirus are non-enveloped, with icosahedral and isometric geometries, and T=3 symmetry. The diameter is around 30 nm. Genomes are linear, around 6.3kb in length.[1]

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

Life cycle

Viral replication is cytoplasmic and lysogenic. 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. Translation takes place by leaky scanning. The virus exits the host cell by monopartite non-tubule guided viral movement. Plants serve as the natural host. The virus is transmitted via a vector (insects). Transmission routes are vector and mechanical.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Tymovirus Plants None Viral movement; mechanical inoculation Viral movement Cytoplasm Cytoplasm Mechanical: beetles; sap

References

  1. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ^ a b "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 15 May 2021.