Gammabaculovirus

Gammabaculovirus is a genus of viruses, in the family Baculoviridae. Hymenoptera serve as natural hosts. There are two species in this genus.[1][2][3][4]

Gammabaculovirus
Virus classification
(unranked): Virus
Realm: incertae sedis
Kingdom: incertae sedis
Phylum: incertae sedis
Class: Naldaviricetes
Order: Lefavirales
Family: Baculoviridae
Genus: Gammabaculovirus

Taxonomy

The following species are assigned to the genus:[4]

  • Neodiprion lecontei nucleopolyhedrovirus
  • Neodiprion sertifer nucleopolyhedrovirus

Structure

Viruses in Gammabaculovirus are enveloped. Genomes are circular, around 82-86kb in length. The genome codes for 90 proteins.[2][3]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
GammabaculovirusBudded or OccludedEnvelopedCircularMonopartite

Life cycle

Viral replication is nuclear. Entry into the host cell is achieved by attachment of the viral glycoproteins to host receptors, which mediates endocytosis. Replication follows the dsDNA bidirectional replication model. DNA-templated transcription, with some alternative splicing mechanism is the method of transcription. The virus exits the host cell by nuclear pore export, and existing in occlusion bodies after cell death and remaining infectious until finding another host. Hymenoptera serve as the natural host. Transmission routes are fecal-oral.[2][3]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
GammabaculovirusHymenopteraEpithileal: midgutCell receptor endocytosisBudding; OcclusionNucleusNucleusOral-fecal

References
  1. Harrison, RL; Herniou, EA; Jehle, JA; Theilmann, DA; Burand, JP; Becnel, JJ; Krell, PJ; van Oers, MM; Mowery, JD; Bauchan, GR; Ictv Report, Consortium (September 2018). "ICTV Virus Taxonomy Profile: Baculoviridae". The Journal of General Virology. 99 (9): 1185–1186. doi:10.1099/jgv.0.001107. PMID 29947603.
  2. "ICTV Report Baculoviridae".
  3. "Viral Zone". ExPASy. Retrieved 15 June 2015.
  4. "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 12 May 2021.
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