Fig. 2. Tbx5 and Tbx20 are required for proper cardiogenesis.
(A-F) Morpholino-injected tadpoles at the indicated stages. Control morphant
embryos (A,D), TBX5 morphant embryos (B,E) and TBX20 morphant embryos (C,F).
Arrows indicate the heart region, arrowheads indicate the eye. (G) Chart
displaying the percentage of morphants surviving and displaying cardiac
abnormalities, as scored by the presence of an unlooped heart tube, a
reduction in cardiac mass and the presence of a pericardial edema.