title: A phylogenetic comparison of urease-positive thermophilic Campylobacter (UPTC) and urease-negative (UN) C. lari.
abstract: In the present study, the reliability of full-length gene sequence information for several genes including 16S rRNA was examined, for the discrimination of the two representative Campylobacter lari taxa, namely urease-negative (UN) C. lari and urease-positive thermophilic Campylobacter (UPTC). As previously described, 16S rRNA gene sequence are not reliable for the molecular discrimination of UN C. lari from UPTC organisms employing both the unweighted pair group method using arithmetic means analysis (UPGMA) and neighbor joining (NJ) methods. In addition, three composite full-length gene sequences (ciaB, flaC and vacJ) out of seven gene loci examined were reliable for discrimination employing dendrograms constructed by the UPGMA method. In addition, all the dendrograms of the NJ phylogenetic trees constructed based on the nine gene information were not reliable for the discrimination. Three composite full-length gene sequences (ciaB, flaC and vacJ) were reliable for the molecular discrimination between UN C. lari and UPTC organisms employing the UPGMA method, as well as among four thermophilic Campylobacter species.
authors.affiliation: Graduate School of Environmental Health Sciences, Azabu University, Fuchinobe 1-17-71, Chuo-ku Sagamihara, Japan.
authors.forename: Junichi
authors.initials: J
authors.lastname: Hirayama
authors.forename: Akihiro
authors.initials: A
authors.lastname: Tazumi
authors.forename: Kyohei
authors.initials: K
authors.lastname: Hayashi
authors.forename: Erina
authors.initials: E
authors.lastname: Tasaki
authors.forename: Takashi
authors.initials: T
authors.lastname: Kuribayashi
authors.forename: John E
authors.initials: JE
authors.lastname: Moore
authors.forename: Beverley C
authors.initials: BC
authors.lastname: Millar
authors.forename: Motoo
authors.initials: M
authors.lastname: Matsuda
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics; D002167:Campylobacter / Q000145:classification* / Q000201:enzymology* / Q000235:genetics; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000235:genetics; D005838:Genotype; D010802:Phylogeny; D011110:Polymorphism, Genetic; D014510:Urease / Q000378:metabolism*
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D014510:Urease