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Abstract
A DNA–DNA hybridization experiment was carried out to clarify the relationship between Porphyromonas crevioricanis and Porphyromonas cansulci . The taxonomic standing of these two species was unclear so far because of the high 16S rRNA gene sequence similarity value (99.9 %). The DNA–DNA relatedness values between P. crevioricanis JCM 15906T and P. cansulci JCM 13913T were above 91 % (91–99 %). In addition, P. crevioricanis JCM 15906T exhibited high hsp60 gene sequence similarity with P. cansulci JCM 13913T (100 %). The hsp60 gene sequence analysis and the DNA–DNA relatedness values demonstrated that P. crevioricanis JCM 15906T and P. cansulci JCM 13913T are a single species. Based on these data, we propose Porphyromonas cansulci as a later heterotypic synonym of Porphyromonas crevioricanis .
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Funding
- IFO (Institute for Fermentation, Osaka, Japan)
- Grant-in-Aid for Scientific Research
- Japan Society for the Promotion of Science (Award Grant No. 23580126)