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Fig. 2. ascl1a is expressed in the adenohypophysis and the adjacent
diencephalon. All panels show double (A-F) or single (G-L)
in situ hybridization with probes indicated in the lower right-hand corners
and ages of specimen in the upper right-hand corners. (B,D,F) Same embryos as
in (A,C,E), after the red staining has been washed out. (A-F) Dorsal views,
anterior towards the left; (G-L) lateral views, anterior towards the left,
dorsal upwards. Arrows indicate adenohypophysis (G-L) or its anlage at the
anterior neural ridge (A-F). ah, adenohypophysis; nh, neurohypophysis; pvh,
posterior-ventral hypothalamus.