Mean trait value and ANOVAs' results for carrying capacity (logK), glucose consumption rate (−logJT50), growth rate (r), and cell size (−logS).

For cell size the ANOVA model is different from the one used for the other traits (see Material and Methods).df : degree of freedom. (a) As there was only one experimental repetition for cell size, the residual variation also contains differences between strains. (b) Type I sums of squares are expressed as a percentage of the total sum of squares. Significance was assessed under a mixed model with Strain(origin) and Medium*strain(origin) as random effects.*Significant at 5%.**Significant at 1%.