Movie 2
Vegetal ablation experiment. The vegetal-most region of the yolk cell is punched with a sharp steel needle, and one half of the vegetal-most yolk cell is removed by cutting the equator of the yolk cell.
Vegetally localised Vrtn functions as a novel repressor to modulate bmp2b transcription during dorsoventral patterning in zebrafish
Development 2017. 144:3361-3374; doi: 10.1242/dev.152553