title: Evaluation of intraspecies genetic variation within the 60 kDa heat-shock protein gene (groEL) of Bartonella species.
abstract: A phylogenetic investigation was done on the members of the genus Bartonella, based on the DNA sequence analysis of the groEL gene, which encodes the 60 kDa heat-shock protein GroEL. Nucleotide sequence data were determined for a near full-length fragment (1368 bp) of the groEL gene of the established Bartonella species and used to infer intraspecies phylogenetic relationships. Phylogenetic trees were inferred from multiple sequence alignments by using both distance and parsimony methods, which demonstrated an architecture composed of six well-supported lineages. The results are consistent with relationships deduced from recent sequence analysis studies based upon citrate synthase (gItA) and previously observed genotypic and phenotypic characteristics; however, they showed greater statistical support at the intragenus level. This suggests that groEL may be a more robust tool for phylogenetic analysis of Bartonella lineages.
authors.affiliation: Centers for Disease Control and Prevention, Bacterial & Mycotic Diseases, Atlanta, GA 30333, USA. efm4@cdc.gov
authors.forename: E L
authors.initials: EL
authors.lastname: Marston
authors.forename: J W
authors.initials: JW
authors.lastname: Sumner
authors.forename: R L
authors.initials: RL
authors.lastname: Regnery
mesh_terms: D001473:Bartonella / Q000145:classification* / Q000235:genetics*; D018834:Chaperonin 60 / Q000235:genetics*; D003001:Cloning, Molecular; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D005069:Evaluation Studies as Topic; D005798:Genes, Bacterial; D014644:Genetic Variation; D008969:Molecular Sequence Data; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA
chemical_list: D018834:Chaperonin 60; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S