Candidate Brn3a target genes: Adhesion molecules and other transmembrane proteins. a-e In situ hybridization analysis in WT and Brn3a-KO mouse retinas at 5 postnatal ages. a Cdh4, b Pcdh20, c Rtn4rl2, d Tmem25, e Tmem91. All samples were collected, imaged and formatted as in Fig. 2. Scale bar – 50 μm.