FIGURE 4.
Locomotion and foraging behavior of wild-type N2, aak-2, and par-4 strains and the rescue of aak-2 mutation by neuronal expression of AAK-2::GFP. First-day adult worms (n > 30) were placed on NGM plates, and the number of body bends occurring within 20 s was counted. To examine foraging behavior, first-day adult forward-moving worms (n > 60) were touched with a human eyelash behind the posterior pharynx bulb. When no head oscillation occurred during backward movement with at least two consecutive body bending cycles, foraging was scored as suppressed. A, wild-type N2, aak-2(gt33), and par-4(it57) strains. B, effects of Punc-119::aak-2::gfp overexpression in the aak-2(gt33) background. The p value between N2 and the gt33;Punc-119::aak-2::gfp was 0 in the upper graph and 0.83 in the lower graph. Error bars are S.E.