Fig. 1. The wnt8^– phenotype is similar to the vent^–;vox^– and swr phenotypes. (A,B,D) Double in situ hybridization for eve1 and gsc. (C) eve1 expression, inset shows gsc. Note strongly reduced eve1 in wnt8 and swr mutants but only slightly reduced eve1 in vent;vox mutants. Arrowheads indicate the width of gsc expression (note circumferential gsc in C, inset). (E-H) In situ hybridization for chd (domain width indicated by arrowheads). Note expansion in both wnt8 and vent;vox mutants, but not swr mutants. All embryos are at shield stage. Animal view, dorsal right.