Fig. 5

Variation of metabolic efficiency between inbreds, F1 and F2. The graph displays the metabolic efficiency for a collection of 390,000 F1 hybrids, their parents and the subsequent F2 population. Efficiency is calculated as the proportion of the flux capacity for each reaction that is actually used (computed flux/genetic flux constraint). A higher proportion of reactions show high efficiencies (over 95%) in F1 hybrids than in their inbred parents or in the F2 individuals