Fig. 1.
Chill coma recovery curves of the parental lines (A* in black, E* in grey) separated for males (doted lines) and females (solid lines). Both males and females of the European line recovered significantly earlier from the chill coma than those of the African line (Welch’s t-test, P < 0.001). The black dotted horizontal line shows the time at which 50% of the line-specific flies recovered.
