Figure 1. The pedigree and haplotype analysis of the Chinese congenital nystagmus subject family. The proband is marked with an arrow. Eight markers are listed from top to bottom: telomere - DXS6807 - DXS7103 - DXS9902 - DXS9896 - GATA186D06 - DXS8015 - DXS6810 - DXS8035 - centromere. Blackened regions of haplotypes indicate linkage between the markers and the disease. Question marks indicate that the genotype is not determined.