title: Prevalence and genetic characterization of avian polyomavirus and psittacine beak and feather disease virus isolated from budgerigars in Mainland China.
abstract: Budgerigar fledgling disease (BFD) and psittacine beak and feather disease (PBFD) are caused by avian polyomavirus (APV) and psittacine beak and feather disease virus (PBFDV), respectively. These diseases frequently infect psittacine birds and result in similar clinical manifestations. In this study, we observed the prevalence of PBFDV infection and a dual infection of APV and PBFDV in a budgerigar (Melopsittacus undulatus) in Mainland China for the first time. One PBFDV isolate and two APV isolates were harvested using chicken embryos. Genetic characterization and phylogenetic analysis of the complete genome of the two APV isolates revealed nucleotide similarity ranging from 99.0% to 99.6% to other sequences in GenBank, and a 14-bp insertion was observed in the genome of one APV isolate. The results of complete genome analysis of the PBFDV isolate showed nucleotide similarity ranging from 83.0% to 95.0% with other PBFDV sequences in GenBank. Genetic characterization and phylogenetic analysis of the APV and PBFDV strains isolated in this study indicated that the isolates from China were closely related to their Japanese counterparts. The results of this study will help to identify molecular determinants and will aid further research on the prevention and control of APV and PBFD infection.
authors: Laboratory of Animal Epidemiological Surveillance, China Animal Health and Epidemiology Center, Qingdao 266032, China.
authors: Qingye
authors: Q
authors: Zhuang
authors: Jiming
authors: J
authors: Chen
authors: Muhammad Hassan
authors: MH
authors: Mushtaq
authors: Jie
authors: J
authors: Chen
authors: Shuo
authors: S
authors: Liu
authors: Guangyu
authors: G
authors: Hou
authors: Jinping
authors: J
authors: Li
authors: Baoxu
authors: B
authors: Huang
authors: Wenming
authors: W
authors: Jiang
mesh_terms: D000818:Animals; D001483:Base Sequence; D001715:Bird Diseases / Q000453:epidemiology / Q000821:virology*; D002681:China / Q000453:epidemiology; D018173:Circoviridae Infections / Q000662:veterinary* / Q000821:virology; D017925:Circovirus / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification*; D016679:Genome, Viral; D046408:Melopsittacus / Q000821:virology*; D008969:Molecular Sequence Data; D010802:Phylogeny; D011120:Polyomavirus / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification*; D027601:Polyomavirus Infections / Q000453:epidemiology / Q000662:veterinary* / Q000821:virology