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Fig. 6. wnt8b overexpression promotes expression of posterior hypothalamic markers. Lateral (A-F) views of brains of wild-type embryos (A,D) and embryos in which cells overexpressing wnt8b (B,C,E,F) have incorporated into the hypothalamus. C and F show the same embryos as B and E after immunocytochemistry to reveal the positions of cells expressing wnt8b. The arrows in B,C point to decreased rx3 expression (B,C) compared to control (A). Abbreviations: pv, posterior-ventral hypothalamus; t, telencephalon.