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Fig. S2.
Expression of emx2, nkx3-2-b, nkx3-3, hand1, hand2-a msx1-b, and msx2. Gene and stage are indicated in figure. Anterior to left in all lateral views, anterior to top in E, N, dorsal to top in II. For those genes with a section shown, the plane of section is shown as a red line on the corresponding whole-mount panel. (J and N) nkx3-3 is expressed in CNCCs where the primary jaw joint will eventually form (arrow).