The 16S rRNA of the bacterion Aquifex pyrophilus, a microaerophilic, oxygen-reducing hyperthermophile, has been sequenced directly from the PCR amplified gene. Phylogenetic analyses show the Aq. pyrophilus lineage to be probably the deepest (earliest) in the (eu) bacterial tree. The addition of this deep branching to the bacterial tree further supports the argument that the Bacteria are of thermophilic ancestry.
- 16S rRNA
- Deep branching
- Maximum likelihood
- Thermophilic origin
ASJC Scopus subject areas
- Ecology, Evolution, Behavior and Systematics
- Applied Microbiology and Biotechnology