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Table 1 PRA2 genotypes and PRA clinical status for 2500 GRs

From: A novel mutation in TTC8 is associated with progressive retinal atrophy in the golden retriever

  PRA clinical status
Genotype i PRA case PRA obligate carrier Clear Unknown Total
TTC8 -/- 22 (75.9%) 0 (0%) 0 (0%) 4 (0.2%) 26
TTC8 +/- 1 (3.4%) 2 (40.0%) 16 (3.5%) 130 (6.5%) 149
TTC8 +/+ 6 (20.7%) 3 (60.0%) 443 (96.5%) 1873 (93.3%) 2325
Total 29 5 459 2007 2500
  1. iThe wildtype allele is represented by “+” and the mutant allele by “-”.