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Fig. 11 The kcnk3a, kcnk3b, kcnk9, and kcnk15b gene (tandem of pore domains in a weak inward rectifying K+-related acid-sensitive K+ [TASK] channel) expression during zebrafish embryogenesis. Whole-mount in situ hybridization of zebrafish embryos at stages 12 h postfertilization (hpf) (A, E, I, M, Q, U, Y, and CC), 24 hpf (B, F, J, N, R, V, Z, and DD), 48 hpf (C, G, K, O, S, W, AA, and EE), and 72 hpf (D, H, L, P, T, X, BB, and FF). The anterior is to the left in all the whole-mount images, and the dorsal is to the top in all transverse sections (B′, F′, G2, J′, N′, O′, R′, V′, W′, Z′, DD′, and EE′). (A–D) Lateral view of gene expression of kcnk3a. (E–H) Dorsal view of gene expression of kcnk3a. (I–L) Lateral view of gene expression of kcnk3b. (M–P) Dorsal view of gene expression of kcnk3b. (Q–T) Lateral view of gene expression of kcnk9. (U–X) Dorsal view of gene expression of kcnk9. (Y–BB) Lateral view of gene expression of kcnk15b. (CC–FF) Dorsal view of gene expression of kcnk15b. The white dashed lines indicate the positions of sections. The letters below or around the dashed lines correspond to the panels. Scale bars were added on the bottom row of images; 250 μm for whole-mount images. allg, anterior lateral line ganglia; e, eye; emt, eminentia thalami; hb, hindbrain; hyp, hypothalamus; mb, midbrain; n, neural tube; nt, notochord; ob, olfactory bulbs; op, optic vesicles; ov, otic vesicles; p, pallium; pa, pharyngeal arches; pc, pancreas; pc, pancreas; pf, pectoral fins; tb, tail bud, tel, telencephalon; thal, thalamus.