Callosal axon branching (green, contralateral side) labeled by in utero cortical electroporation at E15, examined at P21 (from Julien Courchet). Red counterstaining (Cux1) labels layer 2-4.
Modified from: Courchet J.*, Lewis T. Jr *, Aizawa S. and Polleux F. (2013) Terminal axon branching is regulated by the LKB1-NUAK1 kinase pathway via presynaptic mitochondrial capture. Cell 153:1510-1525.