Canine Population Structure: Assessment and Impact of Intra-Breed Stratification on SNP-Based Association Studies
The figure shows the clustering analysis (k = 2) within each breed for BMD, FCR, ROT and GR (n = 30 for each breed). For each breed, a dendogram is drawn in which each vertical line represents a single dog. The two clusters are represented in blue and red, and grey dashed lines indicate outlier dogs. Below the dendogram, dogs are named by geographical origin (US or EU), and names are colored upon their cluster assignment. The scale on the right axis represents the genetics distances calculated by PLINK software.