Additional file 3:

Download video file ^{(10.6MB, mp4)}

Time lapse analysis of Hoechst-stained chick hindbrain. First segment presents low magnification view of the documented hindbrain and states the magnified region of the second segment of the movie. Second part presents contribution of cells from the boundary to the adjacent rhombomere by cell division at the boundary–rhombomere intersection (white/orange arrows) and by cell migration from the boundary region towards the rhombomere (pink arrow). (MP4 10833 kb)