''Thaspiviridae'' is a family of spindle-shaped
virus
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
Since Dmitri Ivanovsky's 1 ...
es that is not assigned to any higher
taxonomic ranks
In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family, order, class, phylum, kingdom, domain. While o ...
. The family contains a single genus, ''Nitmarvirus'', which contains a single species, ''Nitmarvirus NSV1''.
Members of the family ''Thaspiviridae'' have linear dsDNA genomes of 27 to 29 kbp and are the first viruses known to infect mesophilic ammonia-oxidizing archaea of the phylum Thaumarchaeota. The virion of Nitrosopumilus spindle-shaped virus 1 (NSV1) is 64±3 nm in diameter and 112±6 nm in length with a short tail at one pole.
[
] The spindle-shape morphology of the virion is very similar to those of members of the families ''
Fuselloviridae
''Fuselloviridae'' is a family of viruses. Sulfolobus species, specifically shibatae, solfataricus, and islandicus, serve as natural hosts. There are two genera and nine species in the family. The ''Fuselloviridae'' are ubiquitous in high-tempe ...
'' and ''
Halspiviridae
''Halspiviridae'' is a family of viruses that consists of a single genus, ''Salterprovirus'', which consists of a single recognised species; ''Salterprovirus His1'' (hereafter, 'His1'). This virus was isolated from hypersaline water in Australi ...
'', which infect hyperthermophilic and hyperhalophilic archaea, respectively.
References
Virus families
{{Virus-stub