Zygotic rnf2 mutant zebrafish embryos show a pleiotropic phenotype. (a) Lateral view of wildtype embryos (left panel) and rnf2 mutant embryos (right panel) at 3 dpf. The rnf2 mutants show a pleiotropic phenotype, including motility problems, craniofacial defects (arrowheads), lack of pectoral fins, and a pronounced heart edema (arrowheads). Not all phenotypes are visible in the pictures. Scale bar = 1 mm. (b) Expression of tissue-specific markers was assessed by WISH at 3 dpf in wildtype and rnf2 mutant embryos. fabp2: intestinal marker, fabp10: liver marker, try: exocrine pancreas marker (arrowhead indicates pancreatic lobe), and myl7: cardiomyocyte marker. Scale bar is 200 µm.
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