(A) UMAP projection with inferred cell cycle phase for each cell (B) Bar plot showing the proportion of cells in G1, G2/M and S phase of clusters of progenitor cells (prog., expressing sox2 and sox3) and differentiating progenitors (diff. prog., expressing neurod1, neurog1) and neurons (neur., expressing snap25). The total does not always amount to 100% as some clusters have cells from both 0 and 3 dpa. The bar boxed in red represent the foxm1 positive cluster and the cluster numbering refers to the cluster identity defined in Fig 3G. 