Fig. 4
Expression of yes-related kinase (yrk) in vascular endothelial cells. A,F,G: Dorsal view of flat-mounted embryos, anterior is to the right. B-E: Lateral view, anterior is to the left. A-E: The 10-somite (A), 18-somite (B), anterior (C), trunk (D), and posterior (E) regions of 24 hours postfertilization (hpf) embryos. F,G: Anterior regions of flat-mounted embryos at 24 hpf (F) and 30 hpf (G). A,B: Yrk expression is observed in the endothelial cell precursors in the anterior (ALPM) and posterior lateral plate mesoderm (PLPM). A: Note yrk expression in migrating angioblasts (arrow). C-G: Yrk is expressed in axial, intersegmental, head vessels, the cardinal vein tail plexus region and the endocardium. aa, aortic arch; cv, cardinal vein; ec, endocardium; hv, head vessels; da, dorsal aorta; isv, intersegmental vessels; lda, lateral dorsal aorta; MceV, middle cerebral vein; pcv, posterior cardinal vein; phbc, primordial hindbrain channel; pmbc, primordial midbrain channel. |