''Ilarvirus'' is a genus of
positive-strand RNA virus
Positive-strand RNA viruses (+ssRNA viruses) are a group of related viruses that have positive-sense, single-stranded genomes made of ribonucleic acid. The positive-sense genome can act as messenger RNA (mRNA) and can be directly translated int ...
es in the family ''
Bromoviridae
''Bromoviridae'' is a family of viruses. Plants serve as natural hosts. There are six genera in the family.
Taxonomy
The following genera are assigned to the family:
* ''Alfamovirus''
* ''Anulavirus''
* ''Bromovirus''
* ''Cucumovirus''
* ''Ilar ...
''. Plants serve as natural hosts. There are 22 species in this genus.
Structure
Viruses in the genus ''Ilarvirus'' are non-enveloped, with icosahedral and quasi-spherical geometries, and T=3 symmetry. The diameter is around 29 nm. Genomes are linear and have three segments.
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-strand RNA virus replication model in the cytoplasm. Positive strand RNA virus transcription, using the internal initiation model of subgenomic RNA transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. Transmission routes are mechanical inoculation by insects and plant to plant contact.
Taxonomy
The following species are assigned to the genus:
* ''
Ageratum latent virus''
* ''
American plum line pattern virus''
* ''
Apple mosaic virus''
* ''
Asparagus virus 2''
* ''
Blackberry chlorotic ringspot virus''
* ''
Blueberry shock virus''
* ''
Citrus leaf rugose virus''
* ''
Citrus variegation virus
Citrus variegation virus (CVV) is a plant pathogenic virus, a member of subgroup 2 of ilarviruses in the family ''Bromoviridae'', is the causal agent of infectious variegation, a disease occurring all over the world, causing problems for productio ...
''
* ''
Elm mottle virus''
* ''
Fragaria chiloensis latent virus''
* ''
Humulus japonicus latent virus''
* ''
Lilac leaf chlorosis virus''
* ''
Lilac ring mottle virus''
* ''
Parietaria mottle virus''
* ''
Privet ringspot virus''
* ''
Prune dwarf virus''
* ''
Prunus necrotic ringspot virus''
* ''
Spinach latent virus''
* ''
Strawberry necrotic shock virus
The garden strawberry (or simply strawberry; ''Fragaria × ananassa'') is a widely grown hybrid species of the genus ''Fragaria'', collectively known as the strawberries, which are cultivated worldwide for their fruit. The fruit is widely app ...
''
* ''
Tobacco streak virus
Tobacco streak virus (TSV) is a plant pathogenic virus of the family '' Bromoviridae'', in the genus ''Ilarvirus''. It has a wide host range, with at least 200 susceptible species. TSV is generally more problematic in the tropics or warmer clim ...
''
* ''
Tomato necrotic streak virus''
* ''
Tulare apple mosaic virus''
References
External links
*
ICTV Report: ''Bromoviridae''
{{Taxonbar, from=Q5997205
Bromoviridae
Virus genera