1887

Abstract

Bacterial whole-genome sequences contain informative features of their evolutionary pathways. Comparison of whole-genome sequences have become the method of choice for classification of prokaryotes, thus allowing the identification of bacteria from an evolutionary perspective, and providing data to resolve some current controversies. Currently, controversy exists about the assignment of members of the complex, as is for the cases of and ‘’. These two mycobacteria, closely related to on the basis of standard phenotypic and single gene-sequences comparisons, were not considered a member of such species on the basis on some particular differences displayed by a single strain. Whole-genome sequence comparison procedures, namely the average nucleotide identity and the genome distance, showed that those two mycobacteria should be considered members of the species . The results were confirmed with other whole-genome comparison supplementary methods. According to the data provided, and ‘’ should be considered and renamed and included as members of . This study highlights the problems caused when a novel species is accepted on the basis of a single strain, as was the case for . Based mainly on whole-genome sequence analysis, we conclude that should be reclassified as a subspecies of as subsp. and classified in the same subspecies as the type strain of and classified as subsp.

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2018-06-01
2019-12-15
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