Inference of Relationships in Population Data Using Identity-by-Descent and Identity-by-State
Figure 2
Visualization of shared chromosomal regions based on IBS for related individuals.
IBS values for comparisons of two individuals are shown for a representative chromosome for the following pairs: (A) replicate samples NA17255/NA17263, (B) parent-child NA17624/NA17626, (C) full siblings NA17671/NA17674, (D) individuals sharing one quarter of their alleles (NA17655/NA17656; e.g. half-siblings), (E) distantly related individuals NA17673/NA17680. Data analysis was performed using SNPduo software. Note that for pericentromeric regions and the short arms of acrocentric chromosomes (as in panel C) no SNP data were available, producing no IBS measurements.