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Fig. 3. Cortical and ventral patterning is preserved in
Bmpr1a;Bmpr1b mutant mice. RNA in situ hybridization on
E10.5 coronal sections. (A-D) The domains of expression for
Lhx2 (A,B) and Foxg1 (C,D) are unchanged in the mutant and
remain excluded from the dorsomedial area (arrowheads in A-D). (E-H)
Fgf8 expression is absent from the most anterior region along the
rostral midline (E,F), but is maintained ventrally, as seen in more posterior
sections (G,H). (I-L) The ventromedial markers Nkx2.1 (I,J)
and Gli1 (K,L) are expressed in the mutant, suggesting that ventral
cell fate is unaffected and that SHH signaling is active. Scale bars: 275
µm.