Fig. 4.

Gr33a is necessary for oviposition to avoid coumarin. (A) Concentration-dependent avoidance for oviposition for control, Gr33a¹, Gr66a^ex83, and Gr93a³ in either 1 mM sucrose alone, or 5 mM sucrose combined with the indicated concentrations of coumarin. n = 4−6 (B) The oviposition defect in Gr33a¹ can be recovered by the expression of wild-type Gr33a⁺ under control of Gr33a^GAL4. n = 4−9. The error bar represents SEMs. The asterisks indicate significant differences from wild-type (^*P < 0.05, ^**P < 0.01), using single factor ANOVA with Scheffe’s analysis as a post hoc test to compare two sets of data.