Figure 9. Digital reconstruction of Dbx1⁺ (A–C) and Dbx1⁻ neurons (D–F) in the parasagittal plane, with axons indicated.

A–C, Dbx1⁺ neurons. D–F, Dbx1⁻ neurons with projections that span the rostrocaudal axis to a greater extent than Dbx1⁺ neurons. Abbreviations: D, dorsal; and R, rostral. Scale bar applies to A–F.