Genus: Mosavirus

Genus: Mosavirus

Distinguishing features

The genus is distinguished on the basis of genetic characters.



No details are available on the morphology of the virions. 

Nucleic acid

Genome (Phan et al., 2011, Reuter et al., 2014): c. 8,385 nt (5′-UTR: >646 nt; ORF: 7,653 nt; 3′-UTR: 86 nt). The location of the cre has not been identified. 

Genome organization and replication

Genome layout


The deduced polyprotein is of 2,551 aa. There is a L protein which may be a protease. 2A is an aphthovirus-like polypeptide with NPG↓P motif. The genome is predicted to encode a second 3B (VPg) protein. The 3Cpro has a deviant GxCGx10-15AxH motif. 


See discussion under family description.


Viral RNA was detected in faeces of the canyon mouse (Peromyscus crinitus) and the European roller (Coriacas garrulus).

Species demarcation criteria

There is only a single species in the genus.

Two genetic types have been classified by means of phylogenetic clustering.

Member species

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
Mosavirus Amosavirus A1mouse/M-7/USA/2010JF973687NC_038318Complete genomeMoV-A1
Mosavirus Amosavirus A2SZAL6-MoV/2011/HUNKF958461Complete genomeMoV-A2
Mosavirus Bmosavirus B1; marmot mosavirusHT8KY855435Complete genome

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.

Derivation of names

Mosa-: from mouse stool-associated

Related, unclassified viruses 

Virus name

Accession number

Virus abbreviation

marmot mosavirus [TH8/China/2013]



Virus names and virus abbreviations are not official ICTV designations.

Phylogenetic analysis indicates that this virus may be a member of a novel Mosavirus species.