Movie 1.

120 min of actin cable growth in a SiR-Actin labeled wild type (w¹¹¹⁸) stage 10B egg chamber. Images were taken every 15 min. The labeled cable is growing at approximately 0.096 μm/min, typical for wild type nurse cables (Fig. 3B). Cable length was assessed by measuring the Euclidian distance between the cortex and the distal tip of an actin cable. Each frame is a maximum projection of 15 optical slices at 0.5 μm step size.