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Fig. 5 Expression of sema3Fb. A,C: Lateral views of whole-mount embryos. B,D: Stage-matched transverse sections. B,D: At 40-60 hpf, the pretectal region of the diencephalon expresses sema3Fb transcripts. C,D: At 60 hpf, the region of the tectum just ventral to where the RGC axons terminate expresses sema3Fb. The jaw (D), ventral mesenchyme (A,C), telencephalon (arrowhead; A,C), and rhombomeres 2 and 4 (A) also show expression. j, jaw; pt, pretectum; r, rhombomere; tec, tectum; vm, ventral mesenchyme. Scale bars in B,D = 50 μm.
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