Additional file 1: Figure S1. Control MO-Fluo in 72 hpf S. purpuratus embryos. Sea urchin embryos at 72 hpf from oral (a, b, c), lateral (a′, b′, c′) and vegetal (a″, b″, c″) views depict the tissues where fluorescence deriving from the fluorescent MO is visible (c–c″). Morphant embryos imaged with microscope (b–b″) present a phenotype similar to uninjected control embryos (a–a″)
