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Figure 2 | Neural Development

Figure 2

From: Meis1 specifies positional information in the retina and tectum to organize the zebrafish visual system

Figure 2

Meis1 positively regulates ephrin gene expression in the tectum. (A-H) mRNA in situ hybridizations (ISHs) for efna2 (A, B), efna3b (C, D), efna5a (E, F) and efnb3b (G, H) in 32-hpf wild-type (A, C, E, G) and meis1 morphant (meis1MO) (B, D, F, H) embryos. Meis1 knockdown leads to a downregulation in the tectal expression of these ephrin genes (arrows) (I-P) mRNA ISH for efna2 (I, J), efna3b (K, L), efna5a (M, N) and efnb3b (O, P) in 48-hpf wild-type (I, K, M, O) and meis1 morphant (J, L, N, P) embryos. The early defects in tectal ephrin gene expression remain in 48-hpf meis1 morphants (arrows). The dotted lines in (O, P) outline a single tectal lobe in each embryo. Embryos in (A-N) are shown in lateral view with anterior left, while embryos in (O, P) are shown in dorsal view with anterior left.

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