While our study was in revision, González-del Pozo et al.72 identified CFAP20 as a putative cause of autosomal recessive RP from a cohort of 14 whole genome sequences from genetically undiagnosed IRD patients; this study identified one individual with homozygous p.(Arg113Trp) CFAP20 variants that segregated with disease. The gene discussed is CFAP20; the disease is retinitis pigmentosa 1.