Fig. 9
Epiboly and actomyosin formation are defective in MZalkbh4;MZatrn double mutant embryos. (A) Epiboly initiation and progression delay in MZalkbh4;MZatrn double mutants. (B) The quantitative data of epiboly progression at 8 hpf are shown. (C) Co-IP assay shows that endogenous Actin-NMII interaction is decreased in alkbh4 and atrn double morphant embryos. Embryos at 75% epiboly stage were harvested for lysis. (D) Confocal images of phalloidin stained embryos at 50% epiboly, and phalloidin and anti-NMII double stained embryos at 75% epiboly. (E) Quantitative measurements of actomyosin band widths in (D) at 75% epiboly stage. (F) Quantitative measurements of the marginal EVL cell length/width ratios in (D) at both 50% and 75% epiboly stages. Ne, the number of observed embryos; Nc, the number of observed cells. *, p<0.01. Scale bars: 100 μm in (A); 50 μm in (D).