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Developing pancreatic buds. A: NF32 tadpole showing Ptf1a RNA expression in the dorsal and ventral pancreatic buds prior to overt morphogenesis. B: Ptf1a expression in a NF40 tadpole, after buds have fused. C,D: Transgenic tadpoles expressing GFP under the control of the elastase promoter at (C) NF40 and (D) NF42. A–C: Anterior to the left, dorsal up (lateral view). D: Anterior to the left, ventral view. vp, ventral pancreas; dp, dorsal pancreas.
