16S ribosomal DNA sequence analysis confirms the close relationship between the genera Xanthobacter, Azorhizobium, and Aquabacter and reveals a lack of phylogenetic coherence among Xanthobacter species
- Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Braunschweig (Germany)
- Univ. of Georgia, Athens, GA (United States)
A comparative 16S ribosomal DNA (rDNA) sequence analysis was used to investigate the phylogenetic position of members of the genus Xanthobacter. We determined 16S rDNA sequence data for the type strains of the three Xanthobacter species and five additional Xanthobacter strains. The close relationship between the genera Xanthobacter, Azorhizobium, and Aquabacter previously demonstrated by DNA-rRNA hybridization studies was confirmed. The results of our phylogenetic analysis indicate that members of the genera Xanthobacter, Azorhizobium, and Aquabacter are intermixed and that there is no clear genetic cluster consisting of the Xanthobacter species. A comparison of the Xanthobacter sequences with the 16S rDNA sequences available from environmental clone studies indicated that members of this genus have not been detected by nonculturing approaches.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 625675
- Journal Information:
- International Journal of Systematic Bacteriology, Vol. 46, Issue 2; Other Information: PBD: Apr 1996
- Country of Publication:
- United States
- Language:
- English
Similar Records
Bacterial diversity of a Carolina Bay as determined by 16S rRNA gene analysis: Confirmation of novel taxa
Polymorphism in the ribosomal RNA genes in three heterothallic species of Neurospora