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Phylogenetic analysis of the bacterial genus Thermobacteroides indicates an ancient origin of Thermobacteroides proteolyticus
Author(s) -
Rainey F.A.,
Stackebrandt E.
Publication year - 1993
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1111/j.1472-765x.1993.tb01420.x
Subject(s) - phylogenetic tree , phylum , biology , phylogenetics , genus , taxon , evolutionary biology , zoology , 16s ribosomal rna , genetics , bacteria , ecology , gene
The phylogenetic position of two validly described species of Thermobacteroides, T. acetoethylicus and T. proteolyticus was determined by sequence analysis of their 16S rDNA. Comparison of the data with those from more than 600 bacterial species indicated that the two species belong to phylogenetically well separated phyla. While T. acetoethylicus fell within the radiation of the Clostridium/Bacillus sub‐phylum, T. proteolyticus is a deep root to the Thermotogales. Hence, the artificial clustering of thermophilic species with Bacteroides ‐type characters into the same genus is not justified from a genetic /phylogenetic point of view and highlights the importance of phylogenetic studies prior to the description of new taxa.