Wnt ligands regulate the asymmetric divisions of neuronal progenitors in embryos.

Wnt/β-catenin signalling has been implicated in the terminal asymmetric divisions of neuronal progenitors in vertebrates and invertebrates. However, the role of Wnt ligands in this process remains poorly characterized. Here, we used the terminal divisions of the embryonic neuronal progenitors in to characterize the role of Wnt ligands during this process, focusing on a lineage that produces the cholinergic interneuron AIY.