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alphabaculovirus

{{Short description|Genus of viruses}}

{{Use dmy dates|date=April 2017}}

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File:ODD.Baculo.Fig4D.v1.png

Alphabaculovirus is a genus of viruses in the family Baculoviridae.{{cite journal |last1=Harrison |first1=RL |last2=Herniou |first2=EA |last3=Jehle |first3=JA |last4=Theilmann |first4=DA |last5=Burand |first5=JP |last6=Becnel |first6=JJ |last7=Krell |first7=PJ |last8=van Oers |first8=MM |last9=Mowery |first9=JD |last10=Bauchan |first10=GR |last11=Ictv Report |first11=Consortium |title=ICTV Virus Taxonomy Profile: Baculoviridae. |journal=The Journal of General Virology |date=September 2018 |volume=99 |issue=9 |pages=1185-1186 |doi=10.1099/jgv.0.001107 |pmid=29947603|doi-access=free }} The natural hosts of species in this family are invertebrates, among them winged insects (Lepidopterans, Hymenopterans, Dipterans), and decapods. However, species in this genus have been isolated only from the insect order Lepidoptera.{{cite web |title=Genus: Alphabaculovirus {{!}} ICTV |url=https://ictv.global/report/chapter/baculoviridae/baculoviridae/alphabaculovirus#:~:text=Species%20of%20this%20genus%20have,from%20the%20insect%20order%20Lepidoptera. |website=ictv.global}} There are 68 species in the genus.{{cite web|title=ICTV Report|url=http://www.ictv.global/report/baculoviridae|website=ICTV Report Baculoviridae}}{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/537.html|publisher=ExPASy|accessdate=12 June 2015}}{{cite web|title=Virus Taxonomy: 2024 Release|url=https://ictv.global/taxonomy|publisher=International Committee on Taxonomy of Viruses|access-date=28 March 2025}}

Structure

Viruses in Alphabaculovirus are enveloped, with circular genomes around 80–180 kbp in length. The genome codes for 100 to 180 proteins.

class="wikitable sortable" style="text-align:center"
GenusStructure || SymmetryCapsidGenomic arrangementGenomic segmentation
AlphabaculovirusBudded or OccludedEnvelopedCircularMonopartite

Life cycle

Alphabaculovirus 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 double-stranded DNA bidirectional replication model. DNA-templated transcription with some alternative splicing mechanism is the method of transcription. Translation takes place by leaky scanning. The virus exits the host cell by nuclear pore export and exists in occlusion bodies after cell death, remaining infectious until finding another host. Winged insects, arthropods, Lepidoptera, Hymenoptera, Diptera, and Decapoda serve as natural hosts. Transmission routes are fecal-oral.

class="wikitable sortable" style="text-align:center"
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
AlphabaculovirusWinged insectsMidgut then hemocoel; digestive gland epithelium (shrimps)GlycoproteinsBudding; OcclusionNucleusNucleusOral-fecal

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:{{cite web|title=Species List: Baculoviridae|url=https://ictv.global/report/chapter/baculoviridae/taxonomy/baculoviridae|publisher=International Committee on Taxonomy of Viruses|access-date=28 March 2025}}

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References

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External links

  • [http://www.ictv.global/report/baculoviridae ICTV Report: Baculoviridae]
  • [http://viralzone.expasy.org/all_by_species/537.html Viralzone: Alphabaculovirus]

{{Baltimore classification}}

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Category:Baculoviridae

Category:Virus genera