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Figure 7


Fig. 7. Plxna3 (vmc) is required for correct axonal pathfinding of the Vp and VII motoneurons. (A-D) Projection patterns of the Vp motoneurons in the wild-type embryo and the plxna3, plxna4 and sema3a1 morphants at 72 hpf. Ventral views; anterior, top. Arrows on schematics below indicate the abnormal trajectories of the defasciculated axons of the Vp motoneurons (B,D). (E) Quantitative data for phenotypes of the Vp and VII motoneurons observed in the morphants of the zebrafish orthologues of plxna3, plxna4, sema3a, sema3f, nrp1 and nrp2.