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Fig. 6. Comparative analysis of Runx3, Runx1, Runx2 and Cbfβ expression in the craniofacial cartilage at stage 40. (A) Schematic representation of the head of a stage 40 embryo viewed from the lateral side, dorsal to top, anterior to the left. Modified from Nieuwkoop and Faber (1967). (B and C) Schematic representations of the ventral (B) and dorsal (C) cranial cartilage elements. Modified from Sadaghiani and Thiebaud (1987). The cartilage elements are color-coded: ethmoid-trabecular (brown), quadrate (black), Meckel’s (blue), cerathoyal (green), basihyal (red) and branchial (yellow). In panels (A), (B) and (C) the lines labeled “D”, “E”, “F”, “G” and “H” indicate the level of the transverse sections shown in the subsequent panels. cg, cement gland; he, heart; ph, pharynx; st, stomodeum. The scale bar in panel D represents 100 μm. |
