Varidnaviria
| Varidnaviria | ||||
|---|---|---|---|---|
EM image of a virion (virus particle) of the variola virus ( English Smallpox vrus ), which causes smallpox |
||||
| Systematics | ||||
|
||||
| Taxonomic characteristics | ||||
|
||||
| Scientific name | ||||
| Varidnaviria |
Varidnaviria is a range of viruses . The viruses of this field are characterized by vertically folded Jelly-Roll - capsids with pseudohexameren (from three different dimers or two different trimers existing) capsomeres . In this area there are also representatives who have no such structures, but whose evolutionary relationship to members of the empire can be clearly demonstrated - most likely they have lost these in the course of evolution.
The first part of the name (vari) comes from English ( various ); the middle part (dna) relates to deoxyribonucleic acid (DNA), since all members of the range are double-stranded DNA viruses (dsDNA); and the last part (viria) is the suffix for virus areas. An earlier suggested name for this area had similarly read Divdnaviria (with div for diverse ). The Varidnaviria belong as double-stranded DNA viruses in the Baltimore classification to group I.
Systematics
In the area of Varidnaviria (as of March 2020) the following realms are confirmed by the International Committee on Taxonomy of Viruses (ICTV) :
- Varidnaviria area
-
- Empire Bamfordvirae
-
- Phylum nucleocytoviricota
- Class Megaviricetes ( giant viruses )
- Class Pokkesviricetes (including smallpox viruses )
- Phylum Preplasmiviricota
- Class Maveriviricetes (with the virophages Lavidaviridae )
- Class Tectiliviricetes (with the adenoviruses )
- Empire Helvetiavirae
-
- Phylum Dividoviricota
- Class Laserviricetes (tailless, icosahedral virions - virus particles - with internal lipid membranes )
Individual evidence
- ↑ ICTV: ICTV Master Species List 2019.v1 , New MSL including all taxa updates since the 2018b release, March 2020 (MSL # 35)
- ↑ Virus Taxonomy: 2019 Release . International Committee on Taxonomy of Viruses. Retrieved April 25, 2020.
- ↑ a b c Eugene V. Koonin, Valerian V. Dolja, Mart Krupovic, Arvind Varsani, Yuri I. Wolf, Natalya Yutin, M. Zerbini, J. H. Kuhn: Create a megataxonomic framework, filling all principal taxonomic ranks, for DNA viruses encoding vertical jelly roll-type major capsid proteins . In: ICTV Proposal (Taxoprop) . October 2019, S. 2019.003G .. doi : 10.13140 / RG.2.2.14886.47684 .