G. Normalized expression levels of Ccnd1 (G), Prox1 (G') and Gapdh (G'') transcripts were compared between Atoh1-positive cells extracted from the scRNA-seq data of P5 and P14 cerebellum. Wilcoxon test between n=1602 cells (P5 Atoh1-positive cells) and n=274 cells (P14 Atoh1-positive cells). ***p <0.001, N.S.: Not Significant. 