Ci-Tbx2/3 is required for the expression of notochord genes. (A-H″) Fluorescent whole-mount in situ hybridization of wild-type (A-D) or Ci-Tbx2/3VP16::GFP-expressing (green) embryos (E-H′) with probes (red) for Noto4 (A,E-E″), MLKL (B,F-F″), ZF105 (C,G-G″) and FN1-cont. (D,H-H″), and nuclei counterstained with DAPI (blue). Cont., containing.