Schema of Nkx2-1- , Shh - and Gli1 -derived neurons in the dorsal and ventral subdivisions of the posterior medial amygdala. Schema summarizes the fate-mapping data. Nkx2-1-derived neurons (blue colored circles) preferentially fate-mapped to the MePD (MePD, 69%; MePV, 31%). Shh-derived neurons (yellow colored circles) were distributed in an exact mirror-image pattern (MePD, 31%; MePV, 69%). Similar to Nkx2-1-derived neurons, Gli1-derived neurons (orange colored circles) were found predominantly in the MePD (61%) compared to the MePV (39%). The differential inhibitory neuronal subtype fates are summarized in the pie charts in Figures 4M,N,O and 5M,N,O. Abbreviations: Ce, central nucleus; HY, hypothalamus; opt, optic tract; PLCo, posterolateral cortical amygdala nucleus; PRh, perirhinal cortex; slMe, superficial layer of the medial nucleus.