Fig. 3: Reaction norms for ADH (alcohol dehydrogenase) activity in Drosophila melanogaster larvae developing in different concentrations of alcohol in the larval substrate.

Each line represents a RIL from the pB2 subpopulation from the Drosophila Synthetic Population Resources. Symbols in each panel represent the sign of ADH plasticity for the 0–7 and 7–14% alcohol ranges.