Hepandensovirus
The virus genus Hepandensovirus belongs to the Densovirinae subfamily[1] of the family Parvoviridae.[2][3]. Insects and shrimps serve as natural hosts. Infection leads to mortality in the early larval and postlarval stages of the shrimp.[4][5] There is currently only one species in this genus: the type species Decapod hepandensovirus 1.
Hepandensovirus | |
---|---|
Virus classification | |
Group: | Group II (ssDNA) |
Family: | |
Subfamily: | Densovirinae |
Genus: | Hepandensovirus |
Type Species | |
|
Taxonomy
Group: ssDNA
- Family: Parvoviridae
- Sub-Family: Densovirinae
- Genus: Hepandensovirus
- Decapod hepandensovirus 1
Structure
Viruses in genus Hepandensovirus are non-enveloped, with T=1 icosahedral symmetry and round geometries. The diameter is around 21-22 nm. Genomes are linear, around 6kb in length.[4][3]
Genus | Structure | Symmetry | Capsid | Genomic arrangement | Genomic segmentation |
---|---|---|---|---|---|
Hepandensovirus | Icosahedral | T=1 | Non-enveloped | Linear | Segmented |
Life cycle
Viral replication is nuclear. Entry into the host cell is achieved by attachment to host receptors, which mediate clathrin-mediated endocytosis. Replication follows the rolling-hairpin model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear pore export. Insects and shrimps serve as the natural host.[4][3]
Genus | Host details | Tissue tropism | Entry details | Release details | Replication site | Assembly site | Transmission |
---|---|---|---|---|---|---|---|
Hepandensovirus | Crustaceans | None | Clathrin-mediated endocytosis | Budding | Nucleus | Nucleus | Unknown |
References
- "ICTV 10th Report (2018) Densovirinae".
- Cotmore, SF; Agbandje-McKenna, M; Canuti, M; Chiorini, JA; Eis-Hubinger, A; Hughes, J; Mietzsch, M; Modha, S; Ogliastro, M; Pénzes, JJ; Pintel, DJ; Qiu, J; Soderlund-Venermo, M; Tattersall, P; Tijssen, P; and the ICTV Report Consortium (2019). "ICTV Virus Taxonomy Profile: Parvoviridae". Journal of General Virology. 100 (3): 367–368. doi:10.1099/jgv.0.001212. PMID 30672729.
- "ICTV 10th Report (2018) Parvoviridae".
- "Viral Zone". ExPASy. Retrieved 13 August 2015.
- ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.