Fig. 1. Branchial arch expression patterns of the genes downregulated in
Dlx5/6-/-. Lateral views (A-L) or frontal views
(M-X) of wild-type and Dlx5/6-/- E10.5 mouse
embryos processed by whole-mount in situ hybridization. Arrows and arrowheads
indicate changes in gene expression in mdBA1 and BA2, respectively.