Boxed areas in A and B are magnified in A′ and B′, respectively. (A, A′) Unilateral SHH misexpression (right side) is sufficient to induce a SHH+ LFP (boxed area, A; A′), but fails to induce a SHH+/LMX1B+ MFP. (B, B′)
FOXA2 misexpression (right side) in the spinal cord is sufficient to induce both the MFP and LFP (boxed area, B; B′), accompanied by a FP-like morphology. Note that unlike the control side (arrowheads, A, B) FOXA2 and SHH both suppress LMX1gB+ dorsal dI5 interneurons.