PNPLA1 and retinitis pigmentosa: Some prominent examples include the identification of PNPLA1 variants in human patients with autosomal recessive congenital ichthyosis 10 that was enabled by results obtained in Golden Retrievers [50] or the elucidation of the role of the PRCD gene in dogs with progressive cone-rod dystrophy and human patients with retinitis pigmentosa [51].