Ichnovirus

Ichnovirus
Virus classification
Group: Group I (dsDNA)
Family: Polydnaviridae
Genus: Ichnovirus
Type Species
  • Campoletis sonorensis ichnovirus

Ichnovirus is a genus of viruses, in the family Polydnaviridae. Parasitoid wasps serve as hosts, but these wasps are themselves parasites of lepidoptera. There are currently 21 species in this genus including the type species Campoletis sonorensis ichnovirus. [1][2]

Taxonomy

Group: dsDNA

[2]

Structure

Viruses in Ichnovirus are enveloped, with prolate ellipsoid and Cylindrical geometries. Genomes are circular and segmented, around 6.0-20kb in length.[1]

Genus Structure Symmetry Capsid Genomic Arrangement Genomic Segmentation
IchnovirusProlate ellipsoidEnvelopedCircularSegmented

Life Cycle

Viral replication is nuclear. DNA-templated transcription is the method of transcription. The virus exits the host cell by nuclear pore export. Parasitoid wasps serve as hosts, but these wasps are themselves parasites of lepidoptera. The wasp injects one or more eggs into its host along with a quantity of virus. The virus and wasp are in a symbiotic relationship: expression of viral genes prevents the wasp's host's immune system from killing the wasp's injected egg and causes other physiological alterations that ultimately cause the parasitized host to die. Transmission routes are parental.[1]

Genus Host Details Tissue Tropism Entry Details Release Details Replication Site Assembly Site Transmission
IchnovirusParasitoid wasps (Braconidae)Hemocytes; fat bodiesUnknownLysis; buddingNucleusNucleusUnknown

References

  1. 1 2 3 "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. 1 2 ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.

External links

This article is issued from Wikipedia - version of the Friday, November 27, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.