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ZDB-IMAGE-260215-12

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Peng et al., 2026 - Estrogen Receptor 2b Is Involved in Regulating Gonadotropin-Inhibitory Hormone Expression During Early Development in Zebrafish

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Figure 1

Two-color in situ hybridization detection of GnIH, Hcrt, GnRH3, Avt, and GnRH2 (dorsal view) at 36 hpf (A–D) and 72 hpf (E–H). Other peptides mark different areas in the brain. At 36 hpf and 72 hpf, Hcrt is expressed in the lateral hypothalamus (A,E); GnRH3 mRNA is localized in the vicinity of the developing olfactory organ at 36 hpf (B). At 72 hpf, it migrates to the transitional area between the olfactory organ and olfactory bulb (F); Avt mRNA is localized in the pre-optic area (front of GnIH signals) and ventral hypothalamus (close to GnIH mRNA) (C,G); GnRH2 mRNA is expressed in the lateral midbrain at 36 hpf and 72 hpf (D,H).

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Expression / Labeling details

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