Abstract
The 16S ribosomal DNA sequence of Taylorella equigenitalis (formerly Haemophilus equigenitalis), the causative organism of contagious equine metritis, was determined. A phylogenetic analysis of this sequence revealed a phylogenetic position of T. equigenitalis in the beta subclass of the class Proteobacteria apart from the position of Haemophilus influenzae, which belongs to the gamma subclass of Proteobacteria. A close phylogenetic relationship among T. equigenitalis, Alcaligenes xylosoxidans, and Bordetella bronchiseptica was detected; Spirillum volutans and Chromobacterium fluviatile (Iodobacter fluviatile) were in the same group but slightly removed. This relationship is surprising in view of the considerable differences in the G + C contents of the genomes of these bacteria.
| Original language | English |
|---|---|
| Pages (from-to) | 618-21 |
| Number of pages | 4 |
| Journal | International Journal of Systematic Bacteriology |
| Volume | 43 |
| Issue number | 3 |
| Publication status | Published - Jul 1993 |
Keywords
- Alcaligenes
- Animals
- Base Sequence
- Bordetella bronchiseptica
- DNA, Ribosomal
- Gene Amplification
- Gram-Negative Aerobic Bacteria
- Horse Diseases
- Horses
- Molecular Sequence Data
- Phylogeny
- RNA, Ribosomal, 16S
- Sequence Homology, Nucleic Acid