We used microarrays to study the evolution of gene expression in two bacterial ecotypes that coexisted for more than 35000 generations of experimental evolution in an extremely simple environment We s
The experiment concerned the evolution of probiosis in a C elegans infection model. We found that Enterococcus faecalis could evolve to protect against infection by Staphylococcus aureus. Here we used
The extracellular capsule is a major virulence factor, but its ubiquity in free-living bacteria with large environmental breadths suggests that it shapes adaptation to novel niches. Yet, how it does s
Escherichia coli OP50. E. coli OP50 is used as the food source for almost all laboratory cultures of the nematode Caenorhabditis elegans. Almost all isolates of this strain currently in use can be tra