Iridovirus

Iridovirus is a genus of viruses, in the family Iridoviridae.[1] Insects serve as natural hosts. There are currently only two species in this genus including the type species Invertebrate iridescent virus 6. Diseases associated with this genus include: in mosquitoes, IIV-6 usually causes covert (inapparent) infection that reduces fitness.[1][2]

Iridovirus
TEM micrograph of a cluster of virions
Virus classification
Group:
Group I (dsDNA)
Family:
Iridoviridae
Genus:
Iridovirus
Type Species
  • Invertebrate iridescent virus 6

Taxonomy

Group: dsDNA

[3]

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. The diameter is around 185 nm. Genomes are linear, around 213kb in length. The genome codes for 211 proteins.[1][2]

GenusStructureSymmetryGenomic arrangementGenomic segmentation
IridovirusPolyhedralT=147LinearMonopartite

Life cycle

Viral replication is nucleo-cytoplasmic. Entry into the host cell is achieved by attachment of the viral proteins to host receptors, which mediates endocytosis. Replication follows the DNA strand displacement model. DNA-templated transcription is the method of transcription. Insects serve as the natural host.[2]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
IridovirusInsectsNoneCell receptor endocytosisLysis; buddingNucleusCytoplasmContact

References
  1. "Iridoviridae". ICTV Online (10th) Report.
  2. "Viral Zone". ExPASy. Retrieved 15 June 2015.
  3. ICTV: Master Species List 2018b.v2, on: ICTVonline: MSL #34 as of February 2019
  4. ICTV: ICTV Taxonomy history: Invertebrate iridescent virus 1 (ZIP)
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.