Fig. 2. Branchial arch expression patterns of the genes upregulated in Dlx5/6−/−.
(A–W) Lateral views of wild-type, Dlx5/6−/− and Dlx1/2−/− E10.5 mouse embryos processed by whole-mount in situ hybridization. Arrows and solid arrowheads indicate upregulation of expression in Dlx5/6−/− mdBA1 and distal BA2, respectively; open arrowheads indicate downregulation of expression in Dlx1/2−/− mxBA1.