Video 1. Cortical flow imaged in a control embryo expressing myosin::GFP.

Download video file ^{(3.8MB, mp4)}

DOI: 10.7554/eLife.36073.006

Playback is 6x realtime. The video is constructed from maximum intensity projection of 3 × 0.75 µm plane z-stacks acquired at 2 s intervals. The red line marks the position of the division plane. The arrows represent the surface movement between consecutive frames at the base of the arrow. The length of the arrow is five times the magnitude of movement. The direction is also color coded according to the color wheel as shown in Figure 1B.