Fig. 5. FGF/MAPK signalling is required for stem zone maintenance. Electroporation
scheme at HH10 (A). Mis-expression of GFP only does not reduce Sax1
expression (B-C'), while dnFGFR1 inhibits Sax1 (D-E'),
but not Sox2 (F-G'). SU5402, but not DMSO, leads to loss
Sprouty2 (H,I) and Sax1 (J,K), but not Sox2
expression (L,M). Similarly, PD184352