(A) Untrained (naïve) progeny of PA14-trained mothers avoid PA14 from generation F1-F4; the 5th generation returns to normal PA14 attraction. Students t-test, mean ± SEM. n = 10 per generation. At least 3 biological replicates were performed. (B) Learning index (naïve choice index – trained choice index) of generation F1-F5. One-Way ANOVA, Tukey’s multiple comparison test, mean ± SEM. n ≥ 7. *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001, ns = not significant.