Speciation in bacteria: Comparison of the 16S rRNA gene for closely related Enterococcus species

Speciation in bacteria: Comparison of the 16S rRNA gene for closely related Enterococcus species Sequencing of the 16S rRNA genes from enterococcal strains used as starters suggested the existence of specialized taxa of lactic acid enterococci within the species Enterococcus durans and E. faecium and a new species, E. lactis. Comparisons showed that the 16S rRNA genes of closely related species have the same sets of variable positions with different combinations of nucleotides. The presence of identical combinations of nucleotide substitutions in different species was assumed to result from a transfer of genetic information via gene conversion between different rRNA operons. Such events were presumably associated with speciation in bacteria. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Speciation in bacteria: Comparison of the 16S rRNA gene for closely related Enterococcus species

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Microbial Genetics and Genomics; Animal Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795406030033
Publisher site
See Article on Publisher Site

Abstract

Sequencing of the 16S rRNA genes from enterococcal strains used as starters suggested the existence of specialized taxa of lactic acid enterococci within the species Enterococcus durans and E. faecium and a new species, E. lactis. Comparisons showed that the 16S rRNA genes of closely related species have the same sets of variable positions with different combinations of nucleotides. The presence of identical combinations of nucleotide substitutions in different species was assumed to result from a transfer of genetic information via gene conversion between different rRNA operons. Such events were presumably associated with speciation in bacteria.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Mar 25, 2006

References

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