title: Evolution. How does increased fitness evolve?
abstract: Populations of bacteria exposed to a new environment have undergone adaptive evolutionary change over 10,000 generations. These populations provide a testing ground for alternative models of long-term evolution.
authors.affiliation: Department of Ecology and Evolution, University of Chicago, Illinois 60637-1573, USA.
authors.forename: B
authors.initials: B
authors.lastname: Charlesworth
mesh_terms: D000220:Adaptation, Biological / Q000235:genetics*; D005075:Biological Evolution; D004926:Escherichia coli / Q000235:genetics