Figure 8. Re-expression of Nkx2.5 in the mesoderm of Mesp1Cre/+;Nkx2.5GFP/− mice.
(A) Normal expression of Nkx2.5 in the pharyngeal endoderm (unnotched arrows) and mesoderm/heart (arrowheads) on the control mice (Mesp1Cre/+;Nkx2.5GFP/+) at E9.0. (B) Nkx2.5 was not detected in Nkx2.5GFP/− embryos. (C) Nkx2.5 is produced in the mesoderm/heart (arrowheads), but not endoderm (unnotched arrows), on Mesp1Cre/+;Nkx2.5GFP/− mice. A4/B4/C4 are high magnification images for A3/B3/C3 in the square areas, respectively.