Fig. 3. Cell death and dorso-ventral patterning of the spinal cord. (A-F) TUNEL
assay indicates that cell death (green) is not increased in
Hes1/Hes5/ spinal
cord (D-F). (G-P) In-situ hybridization analysis of Shh for the floor
plate (G,L), Sim1 for V3 interneurons (H,M), Evx1 for V0
interneurons (I,N), Lhx2 for D1A interneurons (J,O), and
Wnt1 for the roof plate (K,P) at E10.5. Except for the hypomorphic
roof plate, the dorso-ventral patterning is mostly normal in
Hes1/Hes5/ spinal
cord (L-P). Scale bars: 100 µm.