title: Phylogenetic analysis and assessment of the genera Vibrio, Photobacterium, Aeromonas, and Plesiomonas deduced from small-subunit rRNA sequences.
abstract: We sequenced nearly complete small-subunit rRNAs of 54 reference strains belonging to the genera Vibrio, Photobacterium, Aeromonas, and Plesiomonas. We then performed a phylogenetic analysis by comparing the sequences which we obtained with all other known sequences for bacteria belonging to the gamma subgroup of the Proteobacteria (thus providing a data base consisting of 70 sequences for the genera investigated), using methods such as neighbor joining, maximum likelihood, and maximum parsimony, as well as bootstrap, to assess the robustness of each topology. Our results confirmed that the family Vibrionaceae should include only Photobacterium and Vibrio species (but not Vibrio marinus); that Aeromonas species deserve family rank; and that Plesiomonas shigelloides is linked to the family Enterobacteriaceae. The genera Vibrio, Photobacterium, Aeromonas, and Plesiomonas, together with the family Enterobacteriaceae, the family Pasteurellaceae, and probably the genus Alteromonas, form a robust monophyletic unit within the gamma 3 subgroup of the Proteobacteria.
authors.affiliation: Centre National de la Recherche Scientifique, Villefranche-sur-Mer, France.
authors.forename: R
authors.initials: R
authors.lastname: Ruimy
authors.forename: V
authors.initials: V
authors.lastname: Breittmayer
authors.forename: P
authors.initials: P
authors.lastname: Elbaze
authors.forename: B
authors.initials: B
authors.lastname: Lafay
authors.forename: O
authors.initials: O
authors.lastname: Boussemart
authors.forename: M
authors.initials: M
authors.lastname: Gauthier
authors.forename: R
authors.initials: R
authors.lastname: Christen
mesh_terms: D000333:Aeromonas / Q000145:classification / Q000235:genetics; D010776:Photobacterium / Q000145:classification / Q000235:genetics; D010802:Phylogeny; D016981:Plesiomonas / Q000145:classification / Q000235:genetics; D012329:RNA, Bacterial / Q000235:genetics*; D012335:RNA, Ribosomal / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid; D013045:Species Specificity; D014733:Vibrio / Q000145:classification / Q000235:genetics; D014737:Vibrionaceae / Q000145:classification* / Q000235:genetics*
chemical_list: D012329:RNA, Bacterial; D012335:RNA, Ribosomal