Time-course of relative tension around the animal pole.

<p>Relative tension, <i>T_r</i>, at the surface, calculated by the fine estimation at a vertical distance of 20 µm below the animal pole and the bulge is represented with a pseudocolor on the 3D oocyte surface. The numbers shown below are the elapsed time (min) after the onset of the bulge formation. A color scale from 0 to 4.0 is shown at the bottom right of the figure. Scale bar, 50 µm.