The population genetics of commensal Escherichia coli

  title={The population genetics of commensal Escherichia coli},
  author={Olivier Tenaillon and David Skurnik and Bertrand Picard and Erick Denamur},
  journal={Nature Reviews Microbiology},
The primary habitat of Escherichia coli is the vertebrate gut, where it is the predominant aerobic organism, living in symbiosis with its host. Despite the occurrence of recombination events, the population structure is predominantly clonal, allowing the delineation of major phylogenetic groups. The genetic structure of commensal E. coli is shaped by multiple host and environmental factors, and the determinants involved in the virulence of the bacteria may in fact reflect adaptation to… 

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