Additional file 3: of The potential for non-adaptive origins of evolutionary innovations in central carbon metabolism

Metabolisms viable on a given carbon source vary widely in their exaptation potential. Histogram of the exaptation index (x-axis), i.e., the number of carbon sources C new on which a metabolism is viable, for metabolisms viable on lactate as carbon source C with size (A) 35, (B) 40, (C) 45, and for metabolisms viable on malate as carbon source C with size (D) 35, (E) 40, (F) 45. (TIF 496Â kb