Fig. 1.

Schematic representations of the main types of grafts performed in the present study. a Consensus fate map of the embryonic chick prosencephalon at HH10 stage (data from Trujillo and Alvarado-Mallart 1991; García-López et al. 2004; Pombero and Martínez 2009). b Photomicrograph of a chicken embryo at HH10. b’ Schematic drawing of b showing the placement of the ocular graticule used to normalize the operations. c Photomicrograph of a chicken embryo at HH11. c’ Schematic drawing of c representing the placement of the ocular graticule used to normalize the operations. d Schematic drawings of the cases described in the present study, representing the place where the orthotopic and isochronic graft was made relative to the fate map of the presumptive prosencephalon. Scale bar in b–b’, 400 μm, d, 250 μm