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Fig. 3. X-Delta-2 and Hox genes are expressed in an overlapping domain during gastrulation. The expression patterns of X-Delta-2 (A,C,E) and Hoxd1 (B,D,F) were analysed by whole-mount in situ hybridisation. The expression of both genes at stage 101/2 (A,B), stage 11 (C,D) and stage 12 (E,F) shows an overlap in their domains of expression. Embryos at stage 101/2 (A,B) and 11 (C,D) are shown from the vegetal side with dorsal to the top, and those at stage 12 (E,F) from the dorsal side with anterior to the top. |