Family: Picornaviridae
Genus: Gallivirus
Distinguishing features
The genus is distinguished on the basis of genetic characters.
Virion
Morphology
No details are available on the morphology of virions.
Nucleic acid
Genome (Boros et al., 2012a, Lau et al., 2014,): c. 8,500 nt (5′-UTR: 761 nt; ORF: 7,425 nt; 3′-UTR: 310 nt). 5′-UTR contains a type II IRES. The 3′-UTR is 310 nt. The location of the cre has not been identified.
Genome organization and replication
Genome layout:
VPg+5′-UTRIRES-II-[L-1AB-1C-1D/2AH-box/NC-2B-2C/3A-3B-3C-3D]-3′-UTR-poly(A)
The deduced polyprotein is of 2,474 aa. There is an L protein with unknown function. The 1AB protein remains uncleaved. The 2A protein contains an H-box/NC motif.
Biology
No virus has been isolated. Viral RNA was detected in the faeces of turkeys and chickens. Two genetic types are distinguished by means of phylogenetic analysis.
Derivation of names
Gallivirus: from the order Galliformes which contains turkeys and chickens; Latin gallina 'chicken'
Species demarcation criteria
There is only a single species in the genus.