Fig. 1: Lower mating success of GA females is associated with short nuptial feeding.
From: Rapid evolution of an adaptive taste polymorphism disrupts courtship behavior
a Two-choice mating assay showing lower mating success in GA females. GA females experienced more courtship failures with WT males than with GA males. Different letters indicate significant differences in mating success (χ2(3) = 29.50, P < 0.001). The asterisk indicates a significant difference in mating success of WT and GA males paired with GA females (χ2(1) = 5.40, P = 0.020). b No-choice mating assays showing lower mating success in GA females than WT females. Different letters indicate significant differences in mating success (χ2(3) = 16.70, P = 0.0008). c Courtship sequence of B. germanica, highlighting the importance of female nuptial feeding on the male’s tergal secretion (original drawings by A.W-K.). d Nuptial feeding duration (mean ± SE) is the time that a female spent exploring the male’s tergal gland with her mouthparts. The durations of failed and successful courtship sequences are indicated by white and black bars, respectively. Different letters indicate significant differences among treatments (ANOVA, Tukey’s HSD test, F(3, 167) = 18.97, P < 0.0001 (upper); F(3, 222) = 3.69, P = 0.01 (lower)). Short nuptial feeding duration causes failure to copulate in both WT and GA females and GA females had significantly shorter nuptial feeding than did WT females (Supplementary Table 2).
