Fig. S2
GFP reporter expression driven by gnathostome Hoxa2 NC enhancers in transgenic zebrafish reporter lines. Three independent lines are shown for each of the three gnathostome Hoxa2 enhancers. Letters in parenthesis indicate species of origin of the enhancer: zf, zebrafish; f, fugu; m, mouse. Lateral (top) and dorsal (middle) views are shown. Arrowheads denote GFP expression in PA2. Schematics at the bottom depict dorsal views of the rhombomeres (r) and pharyngeal arches (numbered), illustrating the consistent domains of activity observed between separate transgenic lines for each enhancer (blue shading). Abbreviations: HB, hindbrain; NC, neural crest; OV, otic vesicle. |