Fig. 5. VEGF/VEGFR signaling controls expression of PMC-specific genes.
SM30, SM50 and VEGFR transcripts detected by WMISH
at the indicated stages in control sea urchin embryos and those injected with
Mo-VEGF or Mo-VEGFR. MB, mesenchyme blastula; EG, early gastrula; LG, late
gastrula; EP, early pluteus.