Plot of average actin flow velocity projected along the AV axis during CP initiation (solid lines, unfertilized, 1 mpf and 3 mpf) and CP expansion and absorption (dashed lines, 6 mpf and 9 mpf) measured experimentally from kymographs as in Fig. 2c ( N = 4 animals, n = 4 oocytes). In d , error bars, s.e.m.