Rescue experiment of Atoh1 KD with WT or S309A form of Atoh1. (K) Proportions of KI67+ cells (total GCPs). Tukey-Kramer test was performed among the control (N=3), Atoh1 KD (N=3), Atoh1 KD +WT (N=3) and Atoh1 KD +S309A (N=3) mice. ***p < 0.001, *p < 0.05, N.S.: Not Significant. Bars and error bars are representing as Mean ± SEM. Number of cells: 138, 147 and 124 from N=3 mice (Control), 82, 75 and 117 from N=3 mice (KD), 127, 269 and 347 from N=3 mice (KD+WT), 195, 71 and 111 from N=3 mice (KD+S309A). 