The genus is distinguished on the basis of genetic characters.
No details are available on the morphology of virions.
Genome (Shi et al., 2018): c. 8,049 nt (5′-UTR: 773 nt; ORF: 7,077 nt; 3'-UTR: 199 nt). The location of the cre has not been identified.
Genome organization and replication
The deduced polyprotein is of 2,359 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 water skinks (Tropidophorus sinensis).
Derivation of names
Tropivirus: derived from Tropidophorus sinicus (host) and picornavirus
Species demarcation criteria
There is only a single species in the genus.
|Species||Virus name||Isolate||Accession number||RefSeq number||Available sequence||Virus Abbrev.|
|Tropivirus A||tropivirus A1; Guǎngdōng Chinese water skink picornavirus||ZGLXR119682||MG600091||Complete genome||TroV-A1|
|Tropivirus B||tropivirus B1; Yili teratoscincus roborowskii picornavirus 1||LPWC175499||MG600083||Complete genome||TroV-B1|
Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.
Related, unclassified viruses
Yili teratoscincus roborowskii picornavirus 1 [LPWC175499]