Fig. 5. Plasmid effect of permissive phylotypes during the serial growth experiments.

S_α+δ value profile in SW media (a), MC media (b), and all experimental groups (c). S_α+δ is an estimate of the combined plasmid fitness and segregation effects. −0.01 ≤ S_α+δ ≤ 0.01 or S_α+δ < −0.01: neutral or negative plasmid effect; S_α+δ  >  0.01: positive plasmid effect. P values of slope: *<0.5; **<0.1; ***<0.01. Occurrence frequency of three S_α+δ groups with negative, neutral, and positive values in a and b are summarised in c.