Genetic diversity of the natural strains of Streptococcus thermophilus

Genetic diversity of the natural strains of Streptococcus thermophilus The method of RAPD-PCR and comparative analysis of the PCR fingerprinting profiles similarity was used to characterize interspecific diversity of natural isolates of the lactic acid bacteria Streptococcus thermophilus. The strain genetic diversity was demonstrated using three primer variants, designed for different bacterial genome regions. The resolution of RAPD-PCR technique with different primers for identification at the species level and for certification at the strain level, was examined relative to the commercially important cultures of S. thermophilus. The results provided conclusion on preferable usage of RAPD-PCR with the primer ERIC-1 for specific identification of S. thermophilus, and with the primer M13 for certification of natural isolates of this species at the strain level. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Genetic diversity of the natural strains of Streptococcus thermophilus

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2007 by Pleiades Publishing, Inc.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S102279540705002X
Publisher site
See Article on Publisher Site

Abstract

The method of RAPD-PCR and comparative analysis of the PCR fingerprinting profiles similarity was used to characterize interspecific diversity of natural isolates of the lactic acid bacteria Streptococcus thermophilus. The strain genetic diversity was demonstrated using three primer variants, designed for different bacterial genome regions. The resolution of RAPD-PCR technique with different primers for identification at the species level and for certification at the strain level, was examined relative to the commercially important cultures of S. thermophilus. The results provided conclusion on preferable usage of RAPD-PCR with the primer ERIC-1 for specific identification of S. thermophilus, and with the primer M13 for certification of natural isolates of this species at the strain level.

Journal

Russian Journal of GeneticsSpringer Journals

Published: May 24, 2007

References

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