Figure 1:

Monotypic culture exponential growth rates for parental (cyan) and resistant (magenta) cells in indicated experimental conditions. Confidence intervals on each experimental replicate is from confidence on the estimate of growth rate for that single replicate according to the Theil-Sen estimator. Comparisons between experimental conditions (of 6 replicates each) are made using Wilcoxon rank-sum. In addition to conditions linked by lines with reported p-values, conditions labeled by ‘a’ and ‘b’ are pairwise distinguishable with p < .005.