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Fig. 3. Comparison of expression patterns of Xpreproapelin, Xmsr, and Nkx2.5 mRNA. (A, D) Expression of Nkx2.5 mRNA at stage 22, in the mesodermal and endodermal layers of the anterior ventral region. (B, E) Expression of Xpreproapelin mRNA in stage 22, in the endodermal layer of anterior ventral region. (C, F) Expression of Xmsr mRNA in stage 22 embryo, in the mesodermal layer of the anterior ventral region. Cement glands are indicated by the dotted line in panels A–C. en: endodermal layer, mes: mesodermal layer, Scale bar: 100 μm. |