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Indivirus

Indivirus
Virus classification Edit this classification
(unranked): Virus
Realm: Varidnaviria
Kingdom: Bamfordvirae
Phylum: Nucleocytoviricota
Class: Megaviricetes
Order: Imitervirales
Family: Mimiviridae
Subfamily: Klosneuvirinae
Genus: Indivirus

Indivirus (IndV) is a genus of giant double-stranded DNA-containing viruses (NCLDV). This genus was detected during the analysis of metagenome samples of bottom sediments of reservoirs at the wastewater treatment plant in Klosterneuburg, Austria. New Klosneuvirus (KNV), Hokovirus and Catovirus genera (all found in these sewage waters) were also described together with Indivirus, building up a putative virus subfamily Klosneuvirinae (Klosneuviruses) with KNV as type genus.[1] Indivirus has a genome of 0.86 million base pairs (660 gene families). This is the smallest genome among Klosneuviruses as mentioned above. GC content is 26.6 %[1] Classification of metagenome, made by analyzing 18S rRNA indicate that their hosts are relate to the simple Cercozoa.[1]

Phylogenetic tree topology of Mimiviridae is still under discussion. Some authors (CNS 2018) like to put Klosneuviruses together with Cafeteria roenbergensis virus (CroV) and Bodo saltans virus (BsV) into a tentative subfamily called Aquavirinae.[2] Another proposal is to put them all together with Mimiviruses into a subfamily Megavirinae.[3]

See also

References

  1. ^ a b c Schulz, Frederik; Yutin, Natalya; Ivanova, Natalia N.; Ortega, Davi R.; Lee, Tae Kwon; Vierheilig, Julia; Daims, Holger; Horn, Matthias; Wagner, Michael (2017-04-07). "Giant viruses with an expanded complement of translation system components" (PDF). Science. 356 (6333): 82–85. Bibcode:2017Sci...356...82S. doi:10.1126/science.aal4657. ISSN 0036-8075. PMID 28386012.
  2. ^ Centre national de la recherche scientifique (CNS): List of the main “giant” viruses known as of today Archived 2019-01-11 at the Wayback Machine, Université Aix Marseille, 18. April 2018
  3. ^ Deeg, C.M.; Chow, E.C.T.; Suttle, C.A. (2018). "The kinetoplastid-infecting Bodo saltans virus (BsV), a window into the most abundant giant viruses in the sea". eLife. 7 e33014. doi:10.7554/eLife.33014. PMC 5871332. PMID 29582753.

Further reading

  • Mitch Leslie: Giant viruses found in Austrian sewage fuel debate over potential fourth domain of life. In: Science. 5. April 2017, doi:10.1126/science.aal1005.

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