Spatiotemporal single-cell regulatory atlas reveals neural crest lineage diversification and cellular function during tooth morphogenesis

In this study, using the mouse molar as a model, we took advantage of single-cell transcriptome profiling, lineage tracing and transgenic mouse models to interrogate the cellular heterogeneity and gene regulatory networks (GRNs) of postmigratory CNCCs.In this study, we have put together a dynamic spatiotemporal single-cell regulatory atlas and revealed the landscape of transcriptional heterogeneity and defined the cellular domains during the progression of cranial neural crest cell (CNCC)-derived dental lineage diversification. Importantly, we identified cell type-specific gene regulatory networks (GRNs) during CNCC-derived dental lineage development. Single-cell transcriptomes were obtained from the digestion of the tooth and its surrounding tissue at E13.5, E14.5, E16.5, P3.5 and P7.5