FIGURE 6.

Lmx1b and FoxP2 in a GABAergic Cre‐reporter mouse. Immunofluorescence labeling identified Lmx1b (red) and FoxP2 (blue) at three rostral‐to‐caudal levels of the PB in mice expressing an L10GFP Cre‐reporter (green) mice for the GABAergic marker gene Slc32a1 (vesicular GABA transporter, Vgat). Arrowheads in panels (f) and (i) indicate a caudal, ventrolateral cluster of neurons that contain FoxP2 and express L10GFP in the “caudal KF.” Approximate bregma levels are shown at bottom‐right in the center column (in mm). All scale bars are 200 μm and apply to other panels in their respective rows