The 67 genes also included BP-specifying genes (Gpr179 and Trpm1) causing congenital stationary night blindness, MC-specifying genes (Timp3 and Clrn1) causing respectively macular degeneration and retinitis pigmentosa/Usher syndrome, and ERPC/LRPC/NRPC-specifying genes (Nr2f1, Kif11, Plk4, Nek2) causing optic atrophy or syndromic retinopathy (Table S10). This evidence concerns the gene PLK4 and Usher syndrome.