The LD analysis of the selection region identified a strong LD block of ~8kb, including 240 variants located in the first two introns of MUC13. We found only two haplotypes (Hap1 or Hap2) in the populations used for scanning long-term balancing selection genes (SCD, NCD, Cross, EUD). Here, MUC13 is linked to Schnyder corneal dystrophy.