Analysis of cell proliferation in the developing palate in E13.5 <i>Foxf2</i>^<i>-/-</i> and wildtype embryos.

<p>(A-F) Representative images of sections through the anterior (A, B), middle (C, D) and posterior (E, F) regions of the palate in wildtype (A, C, E) and <i>Foxf2</i>^<i>-/-</i> mutant (B, D, F) embryos showing distribution of immunostained BrdU-labeled nuclei (green). Sections were counterstained with DAPI (blue). White line divides the palatal shelf into oral and nasal sides for cell counts. (G) The percentage of BrdU-labeled cells in the E13.5 palatal mesenchyme (***p<0.001). AO, oral half of the anterior region; AN, nasal half of the anterior region; MO, Oral half of the middle region; MN, nasal half of the middle region; PO, oral half of the posterior region; PN, nasal half of the posterior region.