Figure 1.

Consumption of carbohydrates by wild type and DILP-deficient fruit flies. (A) Volumes of sucrose solution ingested. (B) Amounts of carbohydrate consumed. Tubes with tested fruit flies were supplied by pair of capillaries: one filled with solution of sucrose, and the other filled with solution of yeast autolysate. It was allowed flies to choose between capillaries for eating either yeast autolysate (mainly, source proteins and essential micronutrients such as vitamins, nitrogen bases, etc.) or sucrose (a source of carbohydrates). The combinations of 3, 6, and 12% sucrose, and 3, 6, and 12% of yeast autolysate were used. Data are n = 3 replicates (each containing 3–8 flies) for each diet and fly line combination.