Nonselective Bottlenecks Control the Divergence and Diversification of Phase-Variable Bacterial Populations
ABSTRACT Phase variation occurs in many pathogenic and commensal bacteria and is a major generator of genetic variability.A putative advantage of phase variation is to counter reductions in variability imposed by nonselective bottlenecks during transmission.Genomes of Campylobacter jejuni, a widespread food-borne pathogen, contain multiple phase-va