Human Evolution

, Volume 10, Issue 1, pp 17–33 | Cite as

A genetic affinity analysis of human populations

  • N. Saitou
Article

Abstract

Genetic affinity of human populations based on allele frequency data was studied from two viewpoints. (1) The effect of the number of polymorphic loci on the reconstruction of a phylogenetic tree of human populations was empirically investigated. Genetic affinity trees were constructed based on data for 1–12 polymorphic loci, by using the neighbor-joining method. Geographical clustering of populations gradually appeared when the number of loci was increased. A new classification and terminology of higher order human population clusters is proposed based on these and other studies. (2) A new method of estimating the absolute divergence time of two populations is proposed, which is based on a diffusion equation that describes random genetic drift.

Key words

genetic polymorphism allele frequency divergence time population genetics 

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Copyright information

© International Institute for the Study of Man 1995

Authors and Affiliations

  • N. Saitou
    • 1
  1. 1.Laboratory of Evolutionary GeneticsNational Institute of GeneticsMishima411Japan

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