Family: Anaerodiviridae (interim Report)
This is a summary page created by the ICTV Report Editors using information from associated Taxonomic Proposals and the Master Species List.
Edited by: Mart Krupovic
Posted: April 2023
The family Anaerodiviridae includes lytic, double-stranded DNA viruses with icosahedral capsids and non-contractile helical tails, and infecting methanogenic archaea of the class Methanobacteria (Table 1.Anaerodiviridae). The family Anaerodiviridae was established in 2022 (Master Species List 37) and currently includes a single species.
Table 1.Anaerodiviridae. Characteristics of members of the family Anaerodiviridae.
|Example||Methanobacterium virus Drs3 (MH674343), species Metforvirus Drs3, genus Metforvirus|
|Virion||Icosahedral capsid with a diameter of approximately 60 nm and a non-contractile tail of approximately 230 nm (siphoviral morphology)|
|Genome||Linear, double-stranded DNA genome of 37 kbp|
|Host range||Isolated from Methanobacterium formicicum Khl10, a hydrogenotrophic, methanogenic archaeon of the class Methanobacteria|
|Taxonomy||Realm Duplodnaviria, kingdom Heunggongvirae, phylum Uroviricota, class Caudoviricetes, order Methanobavirales: 1 genus and 1 species|
|Figure 1.Anaerodiviridae. Genome organisation of Methanobacterium virus Drs3, a member of the family Anaerodiviridae. Boxes indicate open reading frames as annotated on GenBank accession MH674343.|
|Figure 2.Anaerodiviridae. Relationships of the taxa connected to the family Anaerodiviridae.|
Derivation of name
Anaerodiviridae: truncation of "anaerobic digester", referring to the source of isolation.