Gammabaculovirus


Gammabaculovirus is a genus of viruses, in the family Baculoviridae. Hymenoptera serve as natural hosts. There are three species in this genus.

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:Gammabaculovirus neabietis, Neodiprion abietis nucleopolyhedrovirusGammabaculovirus nelecontei, Neodiprion lecontei nucleopolyhedrovirusGammabaculovirus nesertiferis, Neodiprion sertifer nucleopolyhedrovirus

Structure

Viruses in Gammabaculovirus are enveloped. Genomes are circular, around 82-86kb in length. The genome codes for 90 proteins.
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.
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
GammabaculovirusHymenopteraEpithileal: midgutCell receptor endocytosisBudding; OcclusionNucleusNucleusOral-fecal