The genus is distinguished on the basis of genetic characters.
No details are available on the morphology of the virions.
Genome (Shi et al., 2018): c. 9,196 nt (5′-UTR: 668 nt; ORF: 8,235 nt; 3′-UTR: 293 nt). The location of the cre has not been identified.
Genome organization and replication
The deduced polyprotein is of 2,745 amino acids. There is an L protein with unknown function. The 1AB protein remains uncleaved. The 2A protein has an H-box/NC sequence motif.
No virus has been isolated. Viral RNA was detected in organ pools (gut, liver, lungs) of Chinese softshell turtles (Pelodiscus sinensis) and Chinese broad-headed pond turtles (Mauremys megalocephala).
Derivation of names
Pemapivirus: derived from Pelodiscus sinensis and Mauremys megalocephala (hosts) and picornavirus
Species demarcation criteria
There is only a single species in the genus.