Furrow formation on a piece of cortex transplanted to the cleavage plane of the newt egg.
D000818:Animals; D002455:Cell Division; D005260:Female; D005306:Fertilization; D008846:Micromanipulation; D010063:Ovum / Q000254:growth & development* / Q000637:transplantation; D014183:Transplantation, Heterologous; D014184:Transplantation, Homologous; D014562:Caudata / Q000196:embryology*; D014981:Xenopus / Q000196:embryology