Iridovirus
From Wikipedia, the free encyclopedia
| Iridovirus | |
|---|---|
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| Schematic drawings of Iridovirus virions | |
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| Armadillidium vulgare symptomatic of Invertebrate iridescent virus 31 (above) among individuals with typical colouration (below) | |
Virus classification  | |
| (unranked): | Virus |
| Realm: | Varidnaviria |
| Kingdom: | Bamfordvirae |
| Phylum: | Nucleocytoviricota |
| Class: | Megaviricetes |
| Order: | Pimascovirales |
| Family: | Iridoviridae |
| Subfamily: | Betairidovirinae |
| Genus: | Iridovirus |
| Species | |
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See text | |
Iridovirus is a genus of viruses in the family Iridoviridae.[1] Arthropods serve as natural hosts. Currently, only two species are placed in this genus. Invertebrate iridescent virus 6 (IIV-6) was recognised as the type species until such a designation was abolished. IIV-6 is hosted by mosquitos and usually causes covert (inapparent) infection that reduces fitness.[1][2] The other species Invertebrate iridescent virus 31 (IIV-31) is hosted by isopods and causes patent (apparent) infection characterised by blue to bluish-purple iridescence and a shortened lifespan.
The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:[3]
- Iridovirus armadillidium1, Invertebrate iridescent virus 31
- Iridovirus chilo1, Invertebrate iridescent virus 6
Former species Invertebrate iridescent virus 1 (IIV-1) has been removed from Iridovirus. Its current status is a tentative member of Chloriridovirus.[4]
Structure
Viruses in Iridovirus are enveloped, with icosahedral and polyhedral geometries, and T=147 symmetry. Their diameter is around 185 nm. Genomes are linear, around 213 kb in length. The genome codes for 211 proteins.[1][2]
| Genus | Structure | Symmetry | Genomic arrangement | Genomic segmentation |
|---|---|---|---|---|
| Iridovirus | Polyhedral | T=147 | Linear | Monopartite |
