articleMolecular MicrobiologyMay 4, 2006GREEN OA

Sex and virulence in Escherichia coli : an evolutionary perspective

University of Konstanz · Max Planck Institute for Infection Biology · +8 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Pathogenic Escherichia coli cause over 160 million cases of dysentery and one million deaths per year, whereas non-pathogenic E. coli constitute part of the normal intestinal flora of healthy mammals and birds. The evolutionary pathways underlying this dichotomy in bacterial lifestyle were investigated by multilocus sequence typing of a global collection of isolates. Specific pathogen types [enterohaemorrhagic E. coli, enteropathogenic E. coli, enteroinvasive E. coli, K1 and Shigella] have arisen independently and repeatedly in several lineages, whereas other lineages contain only few pathogens. Rates of evolution have accelerated in pathogenic lineages, culminating in highly virulent organisms whose genomic…

No related works found for this paper.

Funding