Fig. 8. stripe, rhomboid and spitz are not required for groove formation. Lateral views of stage 14 embryos. (A) Wild type. (B) stripe^DG4 mutant embryos (here stained with anti-Engrailed) have grooves although they can be irregularly spaced. (C) Normal grooves form in a rhomboid^7M43 mutant (also stained with anti-Engrailed). (D) spitz¹ mutant. Again, grooves form although the epidermis can be disorganised