Figure 1. Pedigree of the three unrelated Moroccan families with retinitis pigmentosa with mutation segregation. In family RP1, the proband (RP1.03) carried the compound c.1690G>T and c.1913C>T heterozygous mutations in CRB1, transmitted by the father and the mother, respectively. In family RP2, the splice site PDE6B: c.1920+2T>C mutation was found homozygous in the proband (RP2.03) and heterozygous in the parents. In family RP3, the proband (RP3.03) carried the heterozygous compound mutations in ABCA4, the c.5908C>T and c.6148G>C transmitted by the father and the mother, respectively.