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. Author manuscript; available in PMC: 2013 Dec 27.
Published in final edited form as: Development. 2002 Jul;129(13):3033–3044. doi: 10.1242/dev.129.13.3033

Fig. 7.

Fig. 7

Gcm2 and Foxn1 expression was not detectable in Eya1−/−embryos. (A,B) Coronal sections through the 3rd pharyngeal pouch of E10.5 wild-type and Eya1−/− embryos showing that Gcm2 is strongly expressed in the 3rd pouch endoderm in wild-type embryos (arrow, A) and its expression was not detectable in Eya1−/− embryos (arrow, B). (C,D) Sagittal sections through the 3rd pharyngeal region showing that Foxn1 is expressed in the ventral region of the thymus/parathyroid primordia at E11.5 of wild-type embryos (arrow, C), but its expression was not detectable in Eya1−/− embryos (arrow, D). Note that the 3rd pouch is attached to the pharyngeal endoderm and does not separate as buds to form the primordia of thymus/parathyroid in Eya1−/− embryos. Cranial is up (A–D) and dorsal is to the left (C,D). a, pharyngeal arches; baa3, 3rd branchial arch arteries; ph, pharynx.