(E - F) Fluorescence time-lapse images of F-actin, plasma membrane and histone during AQR/QR.ap migration in WT (E) or cst-1; cst-2 double mutant (F) animals. Merged images, left; inverted fluorescence images of F-actin, right; white arrows, migration direction; asterisks, nucleus; double headed arrows, migration distance. F-actin is labeled with GFP-tagged with the actin-binding domain of Moesin (GFP::Moesin ABD), and the plasma membrane and Histone are labeled with mCherry-tagged with a myristoylation signal and a histone. The dotted lines indicate the cell periphery. Time is presented in minutes. Scale bars, 5 μm. (G - J) Quantification of the QR.ap migration angle (G H), distance (I) and speed (J). Each line in (G I) represents the measurement from one time-lapse movie. Error bars indicate SD. N = 10 - 17. Statistical significance is based on Student's t-tests, **, P 0.01; ***, P  0.001. 