ret and sox10 mutants lack GFP+ ENS cells. (A?A?) In 6 dpf wildtype siblings (wt sibs), GFP+ cells colocalize with the pan-neuronal markers Elavl and acetylated Tubulin (AT, white arrows) in ENS neurons; Elavl?/AT?/GFP+ cells with a characteristic teardrop shape are enteroendocrine cells (green arrow). In 6 dpf ret (B?B?) or sox10 (C?C?) homozygous mutants, GFP+ ENS neurons are absent. AT+ processes are the vagal innervation to the gut (magenta arrows). Elavl?/AT?/GFP+ enteroendocrine cells are still present (green arrows). We analyzed ?30 larvae per genotype. (A?C), maximum projections of dissected guts. Scale bar = 100 µm.
|