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Steering Evolution with Sequential Therapy to Prevent the Emergence of Bacterial Antibiotic Resistance

Fig 1

Example fitness landscapes.

The evolutionary graphs for the fitness landscapes of E. coli with the antibiotics (a) Ampicillin, (b) Ampicillin + Sulbactam and (c) Cefprozil for 4 possible substitutions found in blaTEM-50. Arrows represent fitness–conferring mutations which can fix under the Strong Selection Weak Mutation assumptions. The absence of an arrow in either direction corresponds to a neutral mutation which cannot fix under these assumptions. Each genotype is shaded according to its fitness normalized to a 0–1 scale.

Fig 1

doi: https://doi.org/10.1371/journal.pcbi.1004493.g001