Inferring the ancestry of parents and grandparents from genetic data
Fig 2
The perfect pedigree model for genotype G = (H1, H2) at a site, and K = 2.
Two sources populations: A and B. (A) Outline pedigree in black: the perfect pedigree for genotype G. Two pedigrees embedded in red are for haplotype H1 and H2 respectively. Ancestral settings and recombination settings with the same label have the same meaning. (B) The simplified perfect pedigree for genotype G. Ancestral vector C: (ABAB). The arrows without label define recombination vector R. Each Ri is for a meiosis in the pedigree. P: the phasing error setting. Note that different from Fig 1, the founders in this pedigree can be admixed themselves (i.e., ancestry of these founders can change along the genome) based on the two-stage Markovian pedigree model.