title: Phylogenetic Analysis of Canine Parvovirus VP2 Gene in China.
abstract: In this study, a total of 37 samples (58.0%) were found through PCR assay to be positive for canine parvovirus (CPV) of 66 suspected faecal samples of dogs collected from various cities throughout China. Eight CPV isolates could be obtained in the CRFK cell line. The sequencing of the VP2 gene of CPV identified the predominant CPV strain as CPV-2a (Ser297Ala), with two CPV-2b (Ser297Ala). Sequence comparison revealed homologies of 99.3-99.9%, 99.9% and 99.3-99.7% within the CPV 2a isolates, within the CPV 2b isolates and between the CPV 2a and 2b isolates, respectively. In addition, several non-synonymous and synonymous mutations were also recorded. The phylogenetic tree revealed that most of the CPV strains from different areas in China were located in the formation of a large branch, which were grouped together along with the KU143-09 strain from Thailand and followed the same evolution. In this study, we provide an updated molecular characterization of CPV 2 circulation in China.
authors.affiliation: Institute of Special Wild Economic Animal and Plant Science, Chinese Academy of Agricultural Sciences, Changchun, Jilin province, China.
authors.forename: L
authors.initials: L
authors.lastname: Yi
authors.affiliation: Institute of Special Wild Economic Animal and Plant Science, Chinese Academy of Agricultural Sciences, Changchun, Jilin province, China.
authors.forename: M
authors.initials: M
authors.lastname: Tong
authors.affiliation: Institute of Special Wild Economic Animal and Plant Science, Chinese Academy of Agricultural Sciences, Changchun, Jilin province, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Cheng
authors.affiliation: Wuhan ZhenAi Pet Clinic, Jiang'an District, Wuhan, Hubei province, China.
authors.forename: W
authors.initials: W
authors.lastname: Song
authors.affiliation: Institute of Special Wild Economic Animal and Plant Science, Chinese Academy of Agricultural Sciences, Changchun, Jilin province, China.
authors.forename: S
authors.initials: S
authors.lastname: Cheng
mesh_terms: D000818:Animals; D002681:China / Q000453:epidemiology; D004283:Dog Diseases / Q000821:virology*; D004285:Dogs; D005243:Feces / Q000821:virology; D008969:Molecular Sequence Data; D010322:Parvoviridae Infections / Q000662:veterinary* / Q000821:virology; D017993:Parvovirus, Canine / Q000145:classification / Q000302:isolation & purification*; D010802:Phylogeny; D016133:Polymerase Chain Reaction / Q000662:veterinary; D017385:Sequence Homology
keywords: VP2 gene; canine parvovirus; phylogenetic analysis