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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Dev Biol. 2012 Jun 16;369(1):65–75. doi: 10.1016/j.ydbio.2012.05.032

Fig. 8.

Fig. 8

Morphogenetic movements of the pharyngeal arches require the reception of Hh signaling by the medial endoderm. (A & B) Lateral and (C & D) orthogonal views of 54 hpf smo mutants that received transplants of wild-type endoderm (in red) with the first 4 pharyngeal arches numbered. (A & C) In embryos with contribution of wild-type cells to the medial endoderm, the second arch thickens along the anterior/posterior axis and the third arch moves medially to the second arch. (B & D) These movements are not rescued if the transplanted cells are restricted to lateral (pouch) endoderm. l, lateral; m, medial. Anterior is to the left in all images. Scale bar=50μm.