GRIK1 and breast cancer: Accordingly, Gene Set Enrichment Analysis (GSEA) between Vsx2- and Grik1- populations indicated significant enrichment of rod, cone, AC, HC, and RGC markers in the Vsx2- populations and BC and MG markers in the Grik1- population (default significance at FDR < 0.25; Enrichment in the Vsx2- population: Rod: FDR < 0.001; Cone: FDR < 0.001; AC: FDR < 0.001; HC: FDR = 0.174; RGC: FDR = 0.224; Enrichment in the Grik1- population: BC: FDR < 0.001; MG: FDR < 0.001).