Fig2J. [doi:10.1242/dev.019778] Copyright: This image is from Jeong J; Li X; McEvilly RJ; Rosenfeld MG; Lufkin T; Rubenstein JL, "Dlx genes pattern mammalian jaw primordium by regulating both lower jaw-specific and upper jaw-specific genetic programs." Development 2008; 135: 2905-16 and is displayed with the permission of The Company of Biologist Limited who owns the Copyright. [PMID:18697905]