Figure 5

General phenotype of Slit1b morphants. External morphology of a Slit1b morphant at 48 hpf, compared with an embryo treated with the same amount (2 ng) of Slit1a morpholino, which is indistinguishable from a wild-type embryo (not shown). The alignment of the embryos on the vertical lines shows how the general growth of the Slit1b morphants is not affected. The head region, in contrast, seems severely affected, being smaller overall and having smaller eyes and thinner brain walls (with bigger ventricles).