eLife Assessment
This work is a important resource for hypothesis testing of candidate upstream transcriptional regulatory factors that control the spatiotemporal expression of selector genes and their targets for GABAergic vs glutamatergic neuron fate in the anterior brainstem. Extensive high-quality datasets were generated and state of the art computational methods were convincingly implemented to identify candidate regulatory elements. The work will be of interest to biologists working to understand neuronal gene regulatory networks.