Movie 10.

Live imaging of BB/Par3 patch contacts in an early-stage FP cell. wt embryo mosaically expressing Centrin-GFP, Membrane-GFP (green) and Par3-RFP (magenta). White arrows point at the BB at the beginning of the movie, when the BB is in contact with the anterior Par3 patch, at t=30 min when it makes a contact with the posterior Par3 patch and at the end of the movie. Images were taken every 2 min during the 4 s to 5 s stages time-frame. Dorsal view. Corresponds to the most anterior cell in Fig. 4E.