title: Sequencing and generation of an infectious clone of the pathogenic goose parvovirus strain LH.
abstract: In this study, the complete genome of the virulent strain LH of goose parvovirus (GPV) was sequenced and cloned into the pBluescript II (SK) plasmid vector. Sequence alignments of the inverted terminal repeats (ITR) of GPV strains revealed a common 14-nt-pair deletion in the stem of the palindromic structure in the LH strain and three other strains isolated after 1982 when compared to three GPV strains isolated earlier than that time. Transfection of 11-day-old embryonated goose eggs with the plasmid pLH, which contains the entire genome of strain LH, resulted in successful rescue of the infectious virus. Death of embryos after transfection via the chorioallantoic membrane infiltration route occurred earlier than when transfection was done via the allantoic cavity inoculation route. The rescued virus exhibited virulence similar to that of its parental virus, as evaluated by the mortality rate in goslings. Generation of the pathogenic infectious clone provides us with a powerful tool to elucidate the molecular pathogenesis of GPV in the future.
authors.affiliation: College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, China, wangjy@yzu.edu.cn.
authors.forename: Jianye
authors.initials: J
authors.lastname: Wang
authors.forename: Jinkun
authors.initials: J
authors.lastname: Duan
authors.forename: Liqian
authors.initials: L
authors.lastname: Zhu
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Jiang
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Zhu
mesh_terms: D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D004279:DNA, Viral / Q000737:chemistry* / Q000235:genetics*; D004622:Embryo, Mammalian / Q000821:virology; D005777:Geese / Q000821:virology; D016679:Genome, Viral; D008969:Molecular Sequence Data; D017992:Parvovirus / Q000235:genetics* / Q000254:growth & development / Q000302:isolation & purification / Q000472:pathogenicity*; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D016019:Survival Analysis; D014162:Transfection; D014774:Virulence
chemical_list: D004279:DNA, Viral