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Fig. S6 Bmp2/7 do not affect notochord morphology. (A,B) gsc and flh expression in 90% epiboly embryos that have had BSA- (A) or Bmp2/7- (B) soaked beads implanted into axial tissue. (C,D) The notochord of 24 hpf embryos implanted with BSA- (C) or Bmp2/7- (D) soaked beads. Beads are located anterior to the region shown in D. (E,F) ntl expression in 27 hpf embryos implanted with BSA- (E) or Bmp2/7- (F) soaked beads. (G,H) High-magnification images of the notochord at the level of the hind yolk extension of 48 hpf embryos that were implanted with BSA- (G) or Bmp2/7- (H) soaked beads. fp, floorplate (A,B) Dorsal views, with anterior towards the top. Bars in A,B indicate the width of chordamesodermal domain at its widest point in the control embryo in A. All other views are lateral views, with anterior towards the left.