Phylogenetic Relationships of Three Porcine Mycoplasmas, Mycoplasma hyopneumoniae, Mycoplasma flocculare, and Mycoplasma hyorhinis, and Complete 16S rRNA Sequence of M. flocculare
Open Access
- 1 April 1992
- journal article
- Published by Microbiology Society in International Journal of Systematic and Evolutionary Microbiology
- Vol. 42 (2) , 220-225
- https://doi.org/10.1099/00207713-42-2-220
Abstract
The nucleotide sequence of the 16S rRNA gene of Mycoplasma flocculare was determined and was compared with the sequence of a related porcine mycoplasma, Mycoplasma hyopneumoniae. While the overall level of DNA-DNA homology was approximately 11%, sequence alignment of the two 16S rRNA genes yielded a homology value of more than 95%, emphasizing the highly conserved nature of the 16S rRNA gene. Multiple sequence alignments with other mollicutes indicated that M. flocculare, M. hyopneumoniae, and Mycoplasma hyorhinis form a subcluster within the fermentans phylogroup, and this subcluster is distinct from the Mycoplasma pneumoniae phylogroup. Thus, the three mycoplasmas isolated from porcine respiratory systems exhibit phylogenetic similarities.Keywords
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