Counting the genetic ancestors from source populations in members of an admixed population.

ABSTRACT: In a genetically admixed population, admixed individuals possess genealogical and genetic ancestry from multiple source groups. Under a mechanistic model of admixture, we study the number of distinct ancestors from the source populations that the admixture represents. Combining a mechanistic admixture model with a recombination model that describes the probability that a genealogical ancestor is a genetic ancestor, for a member of a genetically admixed population, we count genetic ancestors from the source populations-those genealogical ancestors from the source populations who contribute to the genome of the modern admixed individual. We compare patterns in the numbers of genealogical and genetic ancestors across the generations. To illustrate the enumeration of genetic ancestors from sou

SUBMITTER: Agranat-Tamir L 

PROVIDER: S-EPMC10990421 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature