Maximum intensity Z-projection from a 3D time-lapse movie of a wildtype embryo expressing H2Av::mCherry (magenta) and Spd2::GFP (green) during n.c. 12 and 13, in response to spontaneous nuclear internalisation. Time in min:sec, scale bar 20 μm. Frame rate is 2 frames/min. In support of Fig. 7.