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Fig 3 Analysis of spatial expression of Xdll-2 by whole-mount in situ hybridizatlon (A) In Situ hybridization of Xdll-2 to a stage 14 embryo. This lateral view shows the presence of hybridization in the ventral half of the embryo, but absence in the dorsal Anterior is right Dorsal is on top (B) In Situ hybridization of Xdll-2 to stage 18 embryos anterior view Note the lack of hybridizatlon m the neural fold (arrow) and underlying mesoderm (C) In Situ hybridization to stage 30 embryo visualizing the late expression of Xdll-2 in the branchial arches (arrows) and otic vesicle (triangle) Lateral view (D) Anterior view of the same embryos in (C) Arrows point to the hybridization in the olfactory placodes CG-cement gland. |