''Ilarvirus'' is a genus of
positive-strand RNA virus
Positive-strand RNA viruses (+ssRNA viruses) are a group of related viruses that have Sense (molecular biology), positive-sense, single-stranded genomes made of ribonucleic acid. The positive-sense genome can act as messenger RNA (mRNA) and can ...
es in the family ''
Bromoviridae
''Bromoviridae'' is a family of viruses
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bac ...
''. Plants serve as natural hosts. There are 36 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, listed by scientific name and followed by their common names:
* ''Ilarvirus AGLV'',
Ageratum latent virus
* ''Ilarvirus AIV2''
* ''Ilarvirus APLPV'',
American plum line pattern virus
* ''Ilarvirus ApMV'',
Apple mosaic virus
* ''Ilarvirus ApNMV''
Apple necrotic mosaic virus
* ''Ilarvirus AV2'',
Asparagus virus 2
* ''Ilarvirus AYRSpV''
* ''Ilarvirus BabIV1'',
Babaco ilarvirus 1
* ''Ilarvirus BCRV'',
Blackberry chlorotic ringspot virus
* ''Ilarvirus BSV'',
Blueberry shock virus
* ''Ilarvirus CarIV1''
* ''Ilarvirus CLRV'',
Citrus leaf rugose virus
* ''Ilarvirus CVV'',
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 ...
* ''Ilarvirus EMoV'',
Elm mottle virus
* ''Ilarvirus FCILV'',
Fragaria chiloensis latent virus
* ''Ilarvirus HdVBV''
* ''Ilarvirus HJLV'',
Humulus japonicus latent virus
* ''Ilarvirus LLCV'',
Lilac leaf chlorosis virus
* ''Ilarvirus LRMV'',
Lilac ring mottle virus
* ''Ilarvirus PDV'',
Prune dwarf virus
* ''Ilarvirus PMV'',
Parietaria mottle virus
* ''Ilarvirus PNRSV'',
Prunus necrotic ringspot virus
* ''Ilarvirus PrRSV'',
Privet ringspot virus
* ''Ilarvirus PrV1''
* ''Ilarvirus RIV1''
* ''Ilarvirus RIV2''
* ''Ilarvirus SLV'',
Spinach latent virus
* ''Ilarvirus SnIV1''
* ''Ilarvirus SNSV'',
Strawberry necrotic shock virus
* ''Ilarvirus SolV1''
* ''Ilarvirus TAMV'',
Tulare apple mosaic virus
* ''Ilarvirus TIV1'',
Tomato ilarvirus 1
* ''Ilarvirus TomNSV'',
Tomato necrotic streak virus
* ''Ilarvirus ToNSV'',
Tomato necrotic spot virus
* ''Ilarvirus TSV'',
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 clima ...
* ''Ilarvirus WCVA''
References
External links
*
ICTV Report: ''Bromoviridae''
{{Taxonbar, from=Q5997205
Bromoviridae
Virus genera