Fig. 4

Bayesian phylogeny and population dynamics of sequence cluster 1 (Enteritidis ST 11; n = 126 genomes). A Bayesian maximum clade credibility time-calibrated phylogeny based on non-recombining regions of the core genome. Blue bars indicate 95% confidence intervals. B Bayesian skygrowth plot that depicts changes in effective population size over time. Median is represented by a black line and 95% confidence intervals are in blue