Fig. 1

Survival in the four Daphnia genotypes used in the transplant experiments following cyanobacterial exposure. Colored lines indicate the different genotypes (tolerant genotypes: T1 and T2, in blue and green, respectively; susceptible genotypes: S1 and S2, in orange and red, respectively). The two tolerant genotypes (T1 and T2) exhibited similar survival patterns (p = 0.26), and survived longer than the two susceptible genotypes (S1 and S2; p = 0.002, p < 0.0001, p = 0.02 and p < 0.0001 for T1–S1, T1–S2, T2–S1, and T2–S2 pairwise comparisons, respectively). Among susceptible genotypes, S1 had a higher survival rate than S2 (p = 0.001). p values were obtained from a Cox model. Sample size was n = 21 (7 individuals × 3 biological replicates) for each genotype