Fig. 1. Developmental expression of XRAR
. Whole-mount in situ
hybridization was performed on embryos from stage 9 to stage 25 using a probe
that recognizes all isoforms of XRAR
. (A) Dorsal (left) and
ventral (right) view of a stage 9 embryo. (B,D,F,H,J) Frontal views. (C) A
dorsal view of the stage 10 embryo. (E) A vegetal view of the stage 10 embryo.
Note the sharp anterior border of strong staining.