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:
Parvoviridae
Subfamily:
Densovirinae
Genus:
Hepandensovirus
Type Species
  • Decapod hepandensovirus 1

Taxonomy

Group: ssDNA

[5][3]

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]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
HepandensovirusIcosahedralT=1Non-envelopedLinearSegmented

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]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
HepandensovirusCrustaceansNoneClathrin-mediated endocytosisBuddingNucleusNucleusUnknown

References
  1. "ICTV 10th Report (2018) Densovirinae".
  2. 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.
  3. "ICTV 10th Report (2018) Parvoviridae".
  4. "Viral Zone". ExPASy. Retrieved 13 August 2015.
  5. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.
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