Movie 3.

Maximum intensity Z-projection from a 3D time-lapse movie of a gnu mutant embryo expressing β-Tubulin::EGFP (grey). The first part shows an approximately 1h old embryo, the second part an approximately 4h old embryo. Time in hr:min:sec, scale bar 20 μm. Frame rate is 2 frames/min. In support of Fig. 4.