Lactobacillus delbrueckii ssp. lactis and ssp. bulgaricus: a chronicle of evolution in action.

ABSTRACT:

Background

Lactobacillus delbrueckii ssp. lactis and ssp. bulgaricus are lactic acid producing bacteria that are largely used in dairy industries, notably in cheese-making and yogurt production. An earlier in-depth study of the first completely sequenced ssp. bulgaricus genome revealed the characteristics of a genome in an active phase of rapid evolution, in what appears to be an adaptation to the milk environment. Here we examine for the first time if the same conclusions apply to the ssp. lactis, and discuss intra- and inter-subspecies genomic diversity in the context of evolutionary adaptation.

Results

Both L. delbrueckii ssp. show the signs of reductive evolution through the elimination of superfluous genes, thereby limiting their carbohydrate metabolic capacities and am

SUBMITTER: El Kafsi H 

PROVIDER: S-EPMC4082628 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature