Figure 9. Marker analysis in PRA-affected non-RPGRIP1^−/− MLHDs. Haplotypes of the cord1 critical region on CFA15 were studied in 12 PRA-affected non RPGRIP1^−/− MLHDs. The “common allele” refers to the combination of the most frequent allele observed in the RPGRIP1^−/− PRA cases (47 sporadic cases and six cases from Family K). For each cell representing an allele in the dog studied, blue shading highlights genotypes identical to the haplotype associated with the cord1 insertion; yellow highlights alleles that are homozygous in the dog under study but differ from the common allele. The symbol (-) and (+) for the marker RPGRIP1 insertion each represents the RPGRIP1 insertion allele and the wildtype allele, respectively. ND indicates that the genotype was not determined.