Ancestry shared between two individuals
Inference of the Cumulative Coalescent Function (CCF) between target and comparator genomes
Shared ancestry inference based on genomic data from the Simons Genome Diversity Project SGDP ⇪
CCFs were computed using information from the Atlas of Variant Age, with allele age estimated using data from SGDP alone and under the joint clock model
Target individual
S_Ulchi-2Alternative ID:
Ul5Continental population: Central Asia Siberia
CASPopulation group: Ulchi Country: Russia
Comparator individual
S_Czech-2Alternative ID:
NA15728Continental population: West Eurasia
WEAPopulation group: Czech Country: Czechoslovakia (pre 1989)
Cumulative Coalescent Function (CCF)
How to interpret this figure?
Showing the inferred fraction of the genome shared between chromosome pairs
Download this figure in PNG format
Data shown in this figure can be downloaded from this page.
| CCF | The cumulative coalescent function (CCF) describes the fraction a given target genome shares with a comparator genome due to common ancestry; the curve is monotonically increasing back in time. The CCF was inferred using a dynamic programming method which takes the alleles carried by the target genome, compares those to the alleles carried by the comparator genome, and infers the CCF based on the estimated age of the shared alleles. Here, allele age estimated using the joint clock model was applied throughout. |
| Haplotypes A, B | The CCF is computed from the alleles shared between two haploid genomes; i.e. between the phased chromosomes of diploid individuals. Here, these are distnguished by arbitrarily (but consistently within a data set) labelling chromosomes as "A" and "B" per individual. |
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