To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 4. Cell nuclei labelling using NNT construct and En-Gal4 driver. En-Gal4 is driving the expression of the NNT construct with EGFP deposited maternally. Movie starts at stage 8/9. Development ; doi: 10.1242/dev.199822 Download Original Video