title: [Phylogeny of ribulose-1,5-bisphosphate carboxylase/oxygenase genes in haloalkaliphilic obligately autotrophic sulfur-oxidizing bacteria of the genus Thioalkalivibrio].
abstract: Fragments of genes of the greenlike form I ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) of eight species of haloalkaliphilic obligately autotrophic sulfur-oxidizing bacteria of the genus Thioalkalivibrio have been revealed and sequenced using previously developed oligonucleotide primers. The data obtained are used for the construction of phylogenetic trees on the basis of nucleotide sequences of RuBisCO genes and their conceptual translations into amino acid sequences. Comparative analysis of the 16S rRNA and RuBisCO gene trees reveals discrepancies between their topologies. According to a RuBisCO gene analysis, the genus Thioalkalivibrio is not monophyletic, and its inner divergence conforms to the significant morphological differences observed between the species. Presumably, horizontal (interspecies) gene transfer was involved in the evolution of the genus Thioalkalivibrio.
authors.forename: T P
authors.initials: TP
authors.lastname: Turova
authors.forename: E M
authors.initials: EM
authors.lastname: Spiridonova
authors.forename: I A
authors.initials: IA
authors.lastname: Berg
authors.forename: B B
authors.initials: BB
authors.lastname: Kuznetsov
authors.forename: D Iu
authors.initials: DIu
authors.lastname: Sorokin
mesh_terms: D015373:Bacterial Typing Techniques; D020563:Gammaproteobacteria / Q000145:classification / Q000201:enzymology / Q000235:genetics*; D008969:Molecular Sequence Data; D010802:Phylogeny; D012273:Ribulose-Bisphosphate Carboxylase / Q000235:genetics*
chemical_list: D012273:Ribulose-Bisphosphate Carboxylase