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Fig. 1 Expression of gsc and foxA3 during early developmental stages. (A, B) At sphere stage, gsc and foxA3 are expressed at the dorsal margin. (C, D) At blastula stage (30% epiboly), gsc and foxA3 transcripts colocalize at the dorsal margin with strong expression in blastodermal cells and YSL (arrowhead). (E, F) At the onset of gastrulation, gsc and foxA3 are expressed in the central part of the embryonic shield. Transcripts of both genes are no longer observed in the YSL. Embryos are in lateral view, dorsal towards the right.
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Reprinted from Developmental Biology, 290(1), Seiliez, I., Thisse, B., and Thisse, C., FoxA3 and goosecoid promote anterior neural fate through inhibition of Wnt8a activity before the onset of gastrulation, 152-163, Copyright (2006) with permission from Elsevier. Full text @ Dev. Biol.