Nudiviridae

Nudiviridae is a family of viruses, the nudiviruses.[1] Insects and marine crustaceans serve as natural hosts. There are currently three species in this family, divided among 2 genera.[2] Diseases associated with this family include: death in larvae, chronic disease in adults.[2][3]

Nudiviridae
Schematic drawing
Virus classification
(unranked): Virus
Realm: incertae sedis
Kingdom: incertae sedis
Phylum: incertae sedis
Class: incertae sedis
Order: incertae sedis
Family: Nudiviridae
Genera
  • Alphanudivirus
  • Betanudivirus

Taxonomy

Group: dsDNA.

Nudiviruses are related to members of the family Baculoviridae and have orthologs of many core genes in common. [2]


Structure

Viruses in the family Nudiviridae are enveloped, with rod-shaped geometries. Genomes are circular.[2][3]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
AlphanudivirusRod-shapedEnvelopedCircular
BetanudivirusRod-shapedEnvelopedCircular

Life cycle

Viral replication is nuclear. DNA-templated transcription is the method of transcription. The virus exits the host cell by nuclear envelope breakdown, and nuclear pore export. Insects and marine crustaceans serve as the natural host. Transmission routes are parental and sexual.[2][3]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
AlphanudivirusInsects:Beetles, CricketsLarva:midgut epithelial cells, then systemic spreading. Adult: midgut epithelial cellsPinocytosisBuddingNucleusCytoplasmFeeding and/or Mating
BetanudivirusLepidopteransNonePinocytosisBuddingNucleusCytoplasmUnknown

References
  1. Harrison, RL; Herniou, EA; Bézier, A; Jehle, JA; Burand, JP; Theilmann, DA; Krell, PJ; van Oers, MM; Nakai, M; ICTV Report Consortium (January 2020). "ICTV Virus Taxonomy Profile: Nudiviridae". The Journal of General Virology. 101 (1): 3–4. doi:10.1099/jgv.0.001381. PMID 31935180.
  2. "ICTV Report Nudiviridae".
  3. "Viral Zone". ExPASy. Retrieved 13 August 2015.
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