Haplotype bifurcation plot of Hapmap52798-ss46526455. The top figure shows the sweeping allele "G" while the bottom figure shows allele "A". This figure shows the breakdown of LD from the core SNP with increasing distance in both directions. The core SNP represents the root of the diagram. Each SNP represents a node and is an opportunity for further branching. If both alleles of a SNP are present on a haplotype the line branches. The thickness of the lines corresponds to the number of samples carrying the haplotype. The length of a branch corresponds to the distance between SNPs.
Schwarzenbacher et al. BMC Genomics 2012 13:48 doi:10.1186/1471-2164-13-48