NR2F2 and heart disorder: Nr2f2, a nuclear receptor gene associated with heart disease (Al Turki et al., 2014; High et al., 2016), was highly and exclusively expressed in the ventral hippocampus in 1-month-old mice and was expressed ventrally in the CH of the hippocampal primordium in mouse embryos (Figure 1, Figure 1—figure supplement 1, and Figure 5Ea), indicating that the Nr2f2 gene may participate in the regulation of the development and function of the ventral hippocampus.