title: Molecular characterization of Newcastle disease viruses in Ostriches (Struthio camelus L.): further evidences of recombination within avian paramyxovirus type 1.
abstract: Newcastle disease virus (NDV) strains isolated from ostriches have been genotyped for the first time by partial sequencing of the F gene to determine the epidemiologic role that this species can play within ND outbreaks. Fifteen additional NDV strains, mostly isolated from chickens but also from pigeons and penguins, were also included in the study to determine genetic relationships with ostriches NDV isolates. High genetic diversity was demonstrated in ostrich NDV isolates, as the 10 isolates were grouped in four distinct NDV genotypes. In agreement with the results obtained when chicken isolates have been molecularly characterized, the predominant genotype in ostriches was the genotype VII. More interestingly, evidences of recombination between genotype II and VII were observed in one ostrich isolate and in two further chicken isolates. Therefore, it seems that ostriches may play a relevant role in the ecology and epidemiology of ND particularly in those regions where they have an increasing farming importance as minor poultry species.
authors.affiliation: College of Animal Science and Veterinary Medicine, Qingdao Agricultural University, Qingdao 266019, China.
authors.forename: Yanbo
authors.initials: Y
authors.lastname: Yin
authors.forename: Martí
authors.initials: M
authors.lastname: Cortey
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Shangjin
authors.initials: S
authors.lastname: Cui
authors.forename: Roser
authors.initials: R
authors.lastname: Dolz
authors.forename: Jianlin
authors.initials: J
authors.lastname: Wang
authors.forename: Zhenhua
authors.initials: Z
authors.lastname: Gong
mesh_terms: D000818:Animals; D002645:Chickens / Q000821:virology; D002681:China / Q000453:epidemiology; D010856:Columbidae / Q000821:virology; D004196:Disease Outbreaks; D014644:Genetic Variation; D005838:Genotype; D009521:Newcastle Disease / Q000453:epidemiology / Q000821:virology*; D009522:Newcastle disease virus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification; D010802:Phylogeny; D012367:RNA, Viral / Q000235:genetics; D011995:Recombination, Genetic; D017423:Sequence Analysis, RNA; D046429:Spheniscidae / Q000821:virology; D020310:Struthioniformes / Q000821:virology*
chemical_list: D012367:RNA, Viral