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Xena is required for changes in cell shape and apical constriction during neurulation. (A) Stage 15 GFP injected control embryo stained for GFP and β-tubulin to outline cells. In control embryos cells are elongated and apically constricted. (B) In Xena sMO injected embryos, cells appear rounded and fail to undergo apical constriction. Scale bar = 25μM.
