|
Fig. 3. In neurula and tailbud stages GATA5 is expressed in endoderm and ventrolateral mesoderm. Sagittal sections of a neurula embryo (A) demonstrating expression of GATA5 in ventral anterior endoderm (arrow) and ventral mesoderm in the prospective heart field area (arrowhead) and a tailbud embryo (B), showing expression of GATA5 in the endoderm, heart mesoderm (arrow) and blood islands (arrowhead). Anterior is to the left in A and B. Transverse section of a tailbud embryo in the region of the liver diverticulum (C), showing GATA5 specific staining in endoderm and lateral plate mesoderm (arrow). a, archenteron; hg, hindgut; ld, liver diverticulum. |