Fig. 3

Figure 3. Expression patterns of nos1 in spotted gar embryos (4-6-9 dpf). At 4 dpf, nos1-positive cells were localized in the rhombencephalon (A–D) in the 4th ventricle (C) and in the tuberal/retrotuberal region (D,D’). At 6 dpf, nos1 expression localized in the rhombencephalon and the hypothalamic domain (E,F,J), the basal plate of the diencephalon proper p1-p3 (F,G), the trigeminal ganglia, in the primordium of the ciliary body/iris in the eye (G), ventrally in the tuberal/retrotuberal region (H,I), and the thalamic area (I). At 9 dpf, nos1 expression was detectable in the basal plate of the mesencephalon (K–O), the rhombencephalon (L,M,O), the tuberal/retrotuberal region of the hypothalamus and retina (M–O), and the trigeminal ganglia (N–P). Abbreviations: br, basal rhombencephalon; cb, ciliary body; har, hypothalamic acroterminal region; hd, hypothalamic domain; i, iris; lbr, latero-basal rhombencephalon; mbp, mesencephalic basal plate; p1/p3, basal plate of prosomere 1 to 3; rab, rhombencephalic alar basal boundary; rbp, rhombencephalic basal plate; re, retina; ta, thalamic area; tr, tuberal region; tg, trigeminal ganglia. Scale bar: 100 µm.