Figure 4From: Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell developmentIn situ hybridisations for bone morphogenetic protein receptor (BMPR)1A (A,B,D,E,F,H) and BMPR1B (I,J,L) in developing chick adrenal glands at embryonic day (E)7 (A-D,I-L) and E9 (E-H). Neural crest-derived (chromaffin) cells have been labelled with HNK-1 (CD57, G,H merge) or tyrosine hydroxylase (TH) (C,D merge; K,L merge). Note that BMPR1A is expressed in both adrenal chromaffin and interrenal (cortical) cells (A-H) while BMPR1B is expressed only by interrenal cells (I-L). ag, adrenal gland; da, dorsal aorta; no, notochord. Bar: 175 μm.Back to article page