Dinodnavirus

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Dinodnavirus
Systematics
Classification : Viruses
Area : Varidnaviria ?
Empire : Bamfordvirae ?
Phylum : Nucleocytoviricota ?
Class : Pokkesviricetes ?
Order : Asfuvirales ?
Family : unclassified
Genre : Dinodnavirus
Type : Heterocapsa circularisquama DNA virus 01
Taxonomic characteristics
Genome : dsDNA
Baltimore : Group 1
Cover : 1232647 (genus)
Scientific name
Dinodnavirus
Short name
HcDNAV
Left

Dinodnavirus is a genus of viruses whose membersinfect dinoflagellates . The genus is not classified as of April 2019. It is possibly a representative of the phylum Nucleocytoviricota (outdated Nucleocytoplasmic large DNA viruses , NCLDV) with giant and smallpox viruses . The name is derived from dino for dinoflagellate and DNA . The type species is the Heterocapsa circularisquama DNA virus 01 (HcDNAV, formerly HcV).

virology

The virus has an icosahedral capsid with a diameter of about 200 nm. Its genome consists of a ds-DNA with a size of approx. 356  kb . The virus infects the dinoflagellatum Heterocapsa circularisquama ( dinoflagellates: Peridiniales ). During replication , virions arise from a part of the cytoplasm called the viroplasm, which is produced by the virus.

Taxonomy

The classification of this genus is still unclear (as of April 2020). The type species was originally assigned to the family Phycodnaviridae (today in the order: Algavirales , class Megaviricetes within the NCLDV). Investigations of the genome of the dinodnaviruses have shown that the genus belongs to the family Asfarviridae (today in the order Asfuvirales , class Pokkesviricetes ), similar to the proposed taxa " Faustovirus ", " Pacman virus " and " Kaumoebavirus ".

Individual evidence

  1. a b c d e f ICTV: ICTV Master Species List 2019.v1 , New MSL including all taxa updates since the 2018b release, March 2020 (MSL # 35)
  2. K. Tarutani, K. Nagasaki, S. Itakura, M. Yamaguchi: Isolation of a virus infecting the novel shellfish-killing dinoflagellate Heterocapsa circularisquama . In: Aquat Microb Ecol. 23, 2001, pp. 103-111.
  3. K. Nagasaki, Y. Tomaru, K. Tarutani, N. Katanozaka, S. Yamanaka, H. Tanabe, M. Yamaguchi: Growth characteristics and intraspecies host specificity of a large virus infecting the dinoflagellate Heterocapsa circularisquama. In: Applied and Environmental Microbiology. Volume 69, number 5, May 2003, pp. 2580-2586, doi : 10.1128 / aem.69.5.2580-2586.2003 , PMID 12732524 , PMC 154496 (free full text).
  4. H. Ogata, K. Toyoda, Y. Tomaru, N. Nakayama, Y. Shirai, JM Claverie, K. Nagasaki: Remarkable sequence similarity between the dinoflagellate-infecting marine girus and the terrestrial pathogen African swine fever virus . In: Virol J. 6, 2009, p. 178.