Expression patterns of cell type and region-specific genes at the 10 somite stage in ogom60 mutants affected in formation of ventral and posterior fates. (A,C,E) Wild type (wt); (B,D,F) ogom60 mutant emryo. (A-D) In situ hybridization of myoD mRNA; (E,F) Expression of myoD and eve1 mRNA (arrow). (G,H) Visualization of dying cells in ogom60 mutants at the 13 somite stage. A ventral region with increased numbers of dying cells is indicated by an arrow. (G,H) Detection of apoptotic cells in wild-type (G) and ogo (H) mutant embryos at the 13 somite stage. Arrow indicates a region with increased number of dying cells. (A,B) Lateral views, anterior towards the left and dorsal towards the top; (C,D) Dorsal view; (E,F) Dorsoposterior view. s, somites, ac, adaxial cells. Scale bar, 0.1 mm.
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