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 nucleopolyhedrovirus Gammabaculovirus nelecontei, Neodiprion lecontei nucleopolyhedrovirus Gammabaculovirus nesertiferis, Neodiprion sertifer nucleopolyhedrovirus
Structure Viruses in Gammabaculovirus are enveloped. Genomes are circular, around 82-86kb in length. The genome codes for 90 proteins.
Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentationGammabaculovirusBudded 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.
Genus Host details Tissue tropism Entry details Release details Replication site Assembly site TransmissionGammabaculovirusHymenopteraEpithileal: midgutCell receptor endocytosisBudding; OcclusionNucleusNucleusOral-fecal
References
External links ICTV Report: Baculoviridae Viralzone: Gammabaculovirus