Reproducibility of parallel evolution of antibiotic resistance. Resistance levels over time for five parallel populations evolving in morbidostats under a dynamic chloramphenicol (CHL) challenge (adapted with permission from Toprak et al. ). The red line is a logistic curve fit according to Equation 1.
Fridman et al. Genome Biology 2012 13:140 doi:10.1186/gb-2012-13-1-140