Double-stranded DNA viruses

REDIRECT Papovaviricetes

Rhizidiovirus is a genus of viruses. Stramenopiles (specifically Hyphochytridiomycota) serve as natural hosts. There is only one species in this genus: Rhizidiomyces virus.

Mavirus is a genus of double stranded DNA virus that can infect the marine phagotrophic flagellate Cafeteria roenbergensis, but only in the presence of the giant CroV virus (Cafeteria roenbergensis). The genus contains only one species: Mavirus cafeteriae. Mavirus can integrate into the genome of cells of C. roenbergensis, and thereby confer immunity to the population

Clavaviridae is a family of double-stranded viruses that infect archaea. This family was first described by the team led by D. Prangishvili in 2010. There is one genus in this family (Clavavirus). Within this genus, a single species has been described to date: Aeropyrum pernix bacilliform virus 1 (APBV1, Clavavirus yamagawaense).

Halspiviridae is a family of viruses that consists of a single genus, Salterprovirus, which consists of a single recognised species; Halovirus His1 (His1, Salterprovirus australiense). This virus was isolated from hypersaline water in Australia and was able to be cultured on the halophilic archaeon Haloarcula hispanica. Like many other archaeoviruses, His1 has an approximately limoniform (lemon-shaped) virion.