Three representative time-lapse live imaging movies of basal progenitor cell divisions in E14.5 and E15.5 mTurq2-Col4a1/+;mTmG/mTmG backskins. The top panel shows the mTurq2-COL4A1 and tdTomato channels, the bottom panel shows the mTurq2-COL4A1 channel only. Scale bar, 50 µm. t = 70 min, 3 fps, 21 min/sec playback speed.
