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Comparison of the locomotor activities between wild-type and ezh2−/− mutants at 5 dpf: (A) distance traveled throughout a 70 min session for wild-type (yellow, n = 11) and ezh2−/− mutant (blue, n = 16). Data are presented as mean ± SD of the distance moved (in mm) in 2 min intervals. Black and white bars at the bottom indicate dark and light conditions, respectively; and (B) cumulative distance travelled for each wild-type (yellow) and mutant (blue) larvae during the light (left) and dark (right) periods. Statistical analysis was performed using a Kruskal–Wallis test followed by Dunn’s post hoc test. **, p <0.05.
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