Fig. 1

Expression of the paralogous AMPA receptor subunit genes gria1a and gria1b in zebrafish at 24, 48, and 72 hours postfertilization (hpf). A,A′: Gene expression of gria1a in a 24 hpf embryo (A: lateral view; A′: frontal view). B,C: The expression pattern of gria1a at 48 hpf (B: lateral view; C: dorsal view). D,E: Expression of gria1a at 72 hpf (D: lateral view; E: dorsal view). F-L: The 20-μm-thick, frontal vibratome sections through a gria1a hybridized larvae at 72 hpf. M-M″: Expression pattern of gria1b in a 24 hpf embryo (M: overview; M′: frontal view; M″: higher magnification of the forebrain in a lateral view). N,O: Expression of gria1b in the central nervous system of a 48 hpf zebrafish embryo (N: lateral view; O: dorsal view). P,Q: gria1b expression in a 72 hpf zebrafish larvae (P: lateral view; Q: dorsal view). R-W: Twenty-micrometer-thick Vibratome sections performed frontally through a gria1b hybridized zebrafish larvae at 72 hpf. CeP, cerebellar plate; drc, dorsal rostral cluster; DT, dorsal thalamus; gc, retinal ganglion cells; Ha, habenula; Hc, caudal hypothalamus; Hy, hypothalamus; in, area where inter neurons are located; inl, inner nuclear layer; mn, area where motor neurons are located; mo, medulla oblongata; OB, olfactory bulb; ov, otic vesicle; Po, preoptic region; r, retina; rh, rhombomeres; S, subpallium; sc, spinal cord; sn, sensory neurons; t, telencephalon; T, tegmentum; TeO, tectum opticum; Th, Thalamus; vcc, ventral caudal cluster; vrc, ventral rostral cluster; VT, ventral thalamus.