title: Molecular characterization of an infectious bronchitis virus strain isolated from northern China in 2012.
abstract: This study reports the complete genome sequence of an infectious bronchitis virus (CK/CH/SD/121220, KJ128295) isolated in 2012 from Shandong Province in northern China. The genome is 27,666 nt long, comprising six genes and 5' and 3' untranslated regions. The full-length genome of the CK/CH/SD/121220 isolate had the highest nucleotide sequence identity (96.7 %) to the YX10 strain. Sites of recombination were identified in the genes 1ab, S, 5a, 5b and N, with their putative parental strains belonging to the QX- and YN-type subgroups, which are already circulating in China. Our findings suggest an important role played by recombination in IBV evolution.
authors.affiliation: Key Laboratory of Animal Epidemiology and Zoonosis, Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, No.2 Yuanmingyuan West Road, Haidian District, Beijing, 100193, People's Republic of China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Zhao
authors.forename: Xiao-yu
authors.initials: XY
authors.lastname: Liu
authors.forename: Jin-long
authors.initials: JL
authors.lastname: Cheng
authors.forename: Yan-ping
authors.initials: YP
authors.lastname: Wu
authors.forename: Guo-zhong
authors.initials: GZ
authors.lastname: Zhang
mesh_terms: D020413:3' Untranslated Regions; D020121:5' Untranslated Regions; D002681:China; D016000:Cluster Analysis; D005814:Genes, Viral; D016679:Genome, Viral; D001351:Infectious bronchitis virus / Q000235:genetics* / Q000302:isolation & purification; D008969:Molecular Sequence Data; D010802:Phylogeny; D012367:RNA, Viral / Q000235:genetics*; D011995:Recombination, Genetic; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid
chemical_list: D020413:3' Untranslated Regions; D020121:5' Untranslated Regions; D012367:RNA, Viral