title: [Analysis of tdh gene and its adjacent loci of Vibrio parahaemolyticus isolates from seafoods].
abstract: OBJECTIVE
  To analyze the structural characteristics of tdh gene and its adjacent loci of Vibrio parahaemolyticus isolates from seafoods.
  
  
  METHODS
  Long distance PCR and genome walking were used to amplify the DNA sequences flanking the tdh gene, and the sequences were analyzed by blastn against the NCBI database.
  
  
  RESULTS
  The genetic structure of tdh-adjacent loci (VPA1312-VPA1327) from isolate ZS34 was similar to that of the reference strain RIMD2210633, with the nucleotide identity of 98.3%. The tdh gene of isolates FJ14 and WZ64 was located in the loci different from the reference strain and ZS34, and showed high nucleotide similarity to tdh3 gene. In the genome of isolate FJ14, tdh was 15kb away from the trh- ure cluster, with IS-like elements and transposase genes inserted therein. Isolate WZ64 lacked trh gene, but also harbored IS-like elements upstream of tdh.
  
  
  CONCLUSIONS
  The tdh-adjacent loci of V. parahaemolyticus seafood isolates exhibit high diversity, an additional evidence of lateral gene transfer in this particular species.
authors.affiliation: Institute of Preventive Veterinary Medicine, Zhejiang University and Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310029, China. shunawang@yahoo.cn
authors.forename: Shuna
authors.initials: S
authors.lastname: Wang
authors.forename: Khamphouth
authors.initials: K
authors.lastname: Vongxay
authors.forename: Biao
authors.initials: B
authors.lastname: Shen
authors.forename: Xiangyang
authors.initials: X
authors.lastname: Zhou
authors.forename: Peijie
authors.initials: P
authors.lastname: Jin
authors.forename: Jianshun
authors.initials: J
authors.lastname: Chen
authors.forename: Weihuan
authors.initials: W
authors.lastname: Fang
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry / Q000235:genetics*; D001483:Base Sequence; D016680:Genome, Bacterial; D008969:Molecular Sequence Data; D017747:Seafood / Q000382:microbiology*; D016415:Sequence Alignment; D014736:Vibrio parahaemolyticus / Q000737:chemistry / Q000235:genetics* / Q000302:isolation & purification*
chemical_list: D001426:Bacterial Proteins