Figure 3From: An evolutionary analysis of genome expansion and pathogenicity in Escherichia coliRegression plot of strain-wise median dS and dN. The figure shows median dS estimates plotted against median dN estimates for the E. coli strains in the study. The diagonal line designates the estimated regression line. All similar and clonal strains were removed for the regression analysis resulting in a sample size of 36 strains.Back to article page