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Table 1 Exaptation potential of minimal metabolisms

From: The potential for non-adaptive origins of evolutionary innovations in central carbon metabolism

Focal carbon source Number of minimal metabolisms Size range Number (percentage) of minimal metabolisms with I>0
Fructose 146 [23–30] 146 (100.00 %)
Fumarate 456 [26–32] 456 (100.00 %)
Glucose 161 [23–30] 154 (95.65 %)
Succinate 348 [27–32] 304 (87.36 %)
Lactate 180 [26–34] 144 (80.00 %)
Malate 456 [25–32] 176 (38.60 %)
Glutamate 187 [26–32] 72 (38.50 %)
Acetate 76 [30–36] 16 (21.05 %)
Pyruvate 569 [26–34] 96 (16.87 %)
α-ketoglutarate 970 [25–32] 80 (8.25 %)
  1. Columns, from left to right, indicate the focal carbon source, the number of minimal metabolisms that are viable on this carbon source, the size range of these metabolisms, and the number (percentage) of minimal metabolisms with exaptation index I>0