Ichnovirus
| Ichnovirus | |
|---|---|
| Virus classification | |
| Group: |
Group I (dsDNA)
|
| Family: | |
| Genus: |
Ichnovirus
|
| Type Species | |
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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
-
Family: Polydnaviridae
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Genus: Ichnovirus
- Campoletis aprilis ichnovirus
- Campoletis flavicincta ichnovirus
- Campoletis sonorensis ichnovirus
- Casinaria arjuna ichnovirus
- Casinaria forcipata ichnovirus
- Casinaria infesta ichnovirus
- Diadegma acronyctae ichnovirus
- Diadegma interruptum ichnovirus
- Diadegma terebrans ichnovirus
- Enytus montanus ichnovirus
- Eriborus terebrans ichnovirus
- Glypta fumiferanae ichnovirus
- Hyposoter annulipes ichnovirus
- Hyposoter exiguae ichnovirus
- Hyposoter fugitivus ichnovirus
- Hyposoter lymantriae ichnovirus
- Hyposoter pilosulus ichnovirus
- Hyposoter rivalis ichnovirus
- Olesicampe benefactor ichnovirus
- Olesicampe geniculatae ichnovirus
- Synetaeris tenuifemur ichnovirus
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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 |
|---|---|---|---|---|---|
| Ichnovirus | Prolate ellipsoid | Enveloped | Circular | Segmented |
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 |
|---|---|---|---|---|---|---|---|
| Ichnovirus | Parasitoid wasps (Braconidae) | Hemocytes; fat bodies | Unknown | Lysis; budding | Nucleus | Nucleus | Unknown |
