Tepovirus is a genus of viruses in the order Tymovirales, in the family Betaflexiviridae. Plants as well as some other root and tuber crops in the andes serve as natural hosts. There are five species in this genus.[1][2]
Taxonomy
The following species are assigned to the genus, listed by scientific name and followed by the exemplar virus of the species:[2]
- Tepovirus tafagavis, Agave virus T
- Tepovirus tafavii, Cherry virus T
- Tepovirus tafpruni, Prunus virus 1
- Tepovirus tafsolani, Potato virus T
- Tepovirus tafzosterae, Zostera virus T
Structure
Viruses in Tepovirus are non-enveloped, with flexuous and filamentous geometries. The diameter is around 12 nm. Genomes are linear, around 6.5kb in length. The genome codes for 3 proteins.[1]
| Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|---|
| Tepovirus | Filamentous | Non-enveloped | Linear | Monopartite |
Life cycle
Viral replication is cytoplasmic. 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. Plants as well as some other root and tuber crops in the Andes serve as the natural host. Transmission routes are seed borne and pollen associated.[1]
| Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
|---|---|---|---|---|---|---|---|
| Tepovirus | Pome fruits; citrus; pear | None | Viral movement; mechanical inoculation | Viral movement | Cytoplasm | Cytoplasm | Grafting; propagating material |
References
- ^ a b c "Viral Zone". ExPASy. Retrieved 13 August 2015.
- ^ a b "Virus Taxonomy: 2024 Release". International Committee on Taxonomy of Viruses. Retrieved 10 March 2025.
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