... the floor plate fate at the expense of the notochord. Now, we present evidence that Delta1 is the ligand that triggers the binary switch, which is executed through the Notch-mediated activation of hairy2a in the surrounding cells within the organiser,impeding their involution through the blastopore...

... of the border between neural plate and epidermis. Dlx Neural crest Neural induction Xenopus hairy2a slug snail msx © 2003. 2003 10 10 2002 ‡ Author for correspondence (e-mail: [email protected] ) References Adamska, M., Leger, S., Brand, M., Hadrys, T...