Movie 9.

Physical separation of the anterior and posterior neural plate results in defective anterior neural plate movement. Time lapse recording of a neural stage embryo with a wound at the anterior/posterior neural plate boundary. The posterior (bottom) neural plate narrows through convergent extension. The anterior neural plate cells (top) don't display forward anterior directed movement. Magenta: mem-GFP, Grey: Histone-RFP: Time interval: 1 min.