Microbial adaptation to environmental niches can be reproduced by experimental evolution

ABSTRACT: Experimental evolution is a powerful approach to study how ecological forces shape microbial genotypes and phenotypes, but to date strains were predominantly adapted to conditions specific to laboratory environments. The lactic acid bacterium Lactococcus lactis naturally occurs on plants and in the dairy environment and it is generally believed, that dairy strains originate from the plant niche. Here we investigated the adaptive process from the plant to the dairy niche and show that during the experimental evolution of a L. lactis plant isolate in milk, several mutations are selected that affect amino acid metabolism and transport. Three independently evolved strains were characterized by whole genome re-sequencing, revealing 4 to 28 mutational changes in the individual strains. Two of th

ORGANISM(S): Lactococcus lactis subsp. lactis

SUBMITTER: Douwe Molenaar 

PROVIDER: E-GEOD-20373 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress