The eye margin and compound-eye development in the cockroach: evidence against recruitment.
The compound eye of the cockroach nymph grows from stadium to stadium by the addition of new ommatidia to the growing edge of the eye. By a series of transplant operations on Periplaneta americana and from SEM studies on Gromphadorhina portentosa it is shown that the proliferating region of the eye margin is a budding zone. There is no recruitment of larval head-capsule epidermis into the eye.
D000818:Animals; D003058:Cockroaches / Q000254:growth & development*; D004817:Epidermis / Q000648:ultrastructure; D005123:Eye / Q000254:growth & development* / Q000637:transplantation / Q000648:ultrastructure; D006257:Head / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D010526:Periplaneta / Q000254:growth & development