Movie 11.

Collective organization and migration is disrupted upon loss of NMIIA. Confocal live imaging of GFP expressing cells in E15.5 Myh9lox/lox; R26mTmG/+; CrectTg/0 secondary palate sagittal section shows failure to form collective epithelial trails and islands and a lack of directional MES cell movement. Images were captured every 15 minutes for 20 hours. Scale bar, 15μm.