Cuticular Hydrocarbon Content that Affects Male Mate Preference of Drosophila melanogaster from West Africa

Figure 2

Mating experiment between TW1 and Mel6 by double-choice and no-choice design. (a) Description of the mating designs. (b) Number of mated pairs in the double-choice mating experiment. The pattern deviated from random mating (Cochran-Mantel-Haenszel exact test 𝑃<10⁻⁴). (c) Number of mated pairs in the no-choice mating experiment between TW1 female and Mel6 male and that between Mel6 females and males. The difference between the two combinations of strains was significant (Student 𝑡-test, 𝑡=7.27, df=10, 𝑃<10⁻⁴). (d) Number of mated pairs in the no-choice mating experiment between Mel6 males and Mel6 females coated by cuticular hydrocarbon of TW1 females, “Mel6 + CH(TW1)”, and that between Mel6 males and Mel6 females coated by cuticular hydrocarbon of their own, “Mel6 + CH (Mel6)”. The difference between the two combinations was significant (Student 𝑡-test, 𝑡=3.08, df=10, 𝑃=0.012).