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Fig. 4. VEGF or VEGFR loss-of-function blocks PMC spatial
patterning and skeleton formation in sea urchin. Embryonic treatment
(control or injected with Mo-VEGF or Mo-VEGFR) is indicated on the left of
each row. In each column is shown morphology at 24 and 48 hours, expression of
Ske-T at the gastrula stage and expression of MSP130 at the
pluteus stage. vv, vegetal view.