Fig. 5.

Ectopic barx1 represses the jaw joint. (A-D) Alcian Blue- (cartilage) and Alizarin Red- (bone) stained 4 dpf larval zebrafish skeletons were dissected and imaged with transmitted light. An asterisk indicates jaw joint loss. Skeletal elements are oriented and labeled and as in Fig. 1F. Anterior is towards the left; dorsal is upwards in all panels. Scale bar: 50 μm. (E-G′) 4 dpf larval zebrafish skeletons from animals injected with misexpression constructs and stained with Alcian Blue (cartilage) and Alizarin Red (bone) were imaged with transmitted light. Asterisks indicate joint loss. Scale bar: 50 μm.