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Fig. 5. Caudal displacement of Hox expression domains, motoneuron column and
pool positions in Gdf11-/- spinal cord. (A-D)
Hoxc8 and Hoxc10 expression in flat-mounted open-book
preparations of spinal cords isolated from E12.5 control (A,C) and
Gdf11-/- (B,D) mouse embryos. Rostral is towards the top
and caudal is towards the bottom. The caudal boundary of Hoxc8
expression is indicated by arrows in A,B, while the Hoxc10 expression
domain is located between arrows in C,D. (E-H) Raldh2 and
Pea3 expression in flat-mounted open-book preparations of spinal
cords isolated from E13.5 control (E,G) and Gdf11-/- (F,H)
mouse embryos. Rostral is towards the top and caudal is towards the bottom.
Arrows indicate the expression boundaries of Raldh2 and
Pea3. Scale bars: 1 mm.