Fig. 6. Bone development. (A-E) Lateral view of runx2b expression at 2
dpf. (F-J) Alizarin red staining on live larvae at 5 dpf. (A,F) Wild type;
(B,G) sox9a-; (C,H) sox9bb971; (D,I)
sox9b MO injected; (E,J) double mutant. Abbreviations: I, first
pharyngeal arch; II, second pharyngeal arch; bsr, brachiostegal rays; cb5,
ceratobranchial arch 5; ch, ceratohyal; cl, cleithrum; de, dentary; ent,
entopterygoid; hm, hyomandibular; max, maxilla; op, opercle; ot, otolith; ps,
parasphenoid; ra, retroarticular. Scale bar: in J, 100 µm.