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. Author manuscript; available in PMC: 2022 Oct 14.
Published in final edited form as: J Comp Neurol. 2022 Feb 21;530(10):1658–1699. doi: 10.1002/cne.25307

Figure 1. Lmx1b and FoxP2 in the rat parabrachial nucleus (PB).

Figure 1.

Neurons containing cholera toxin b (CTb, green) retrograde labeling after CTb injections into the central nucleus of the amygdala (CeA; a–c) or bed nucleus of the stria terminalis (BST; d–f) did not contain the transcription factor FoxP2 (blue). Neurons containing the transcription factor Lmx1b (red) filled a gap in the FoxP2 distribution (g–i) and were retrogradely labeled after CTb injection into the BST (j–l). Similarly, CTb injection into the CeA (m, rat case #5133) produced retrograde labeling predominantly in Lmx1b-containing neurons (n). Approximate level caudal to bregma (in mm) is shown at bottom-left in (m–n). Scale bar is 100 μm and applies to panels (a–l). Other abbreviations: mesV, mesencephalic tract and nucleus of the trigeminal nerve; scp, superior cerebellar peduncle.