RORα is not necessary for normal SCN peptide localization. Representative ISH images of AVP and VIP mRNA expression, markers of SCN subdivisions, as well as transcription factor RORα and inverted DAPI nuclear stain in P15 RORα mutant (sg/sg, bottom) and wild-type littermate (+/+, top) mice. Note that segregation of peptidergic expression patterns was similar to littermate control. Scale bar, 250 μm.