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On the genealogy of nested subsamples from a haploid population

Published online by Cambridge University Press:  01 July 2016

Ian W. Saunders*
Affiliation:
CSIRO Division of Mathematics and Statistics
Simon Tavaré*
Affiliation:
Colorado State University
G. A. Watterson*
Affiliation:
Monash University
*
Postal address: CSIRO Division of Mathematics and Statistics, Private Bag 10, Clayton, VIC 3168, Australia.
∗∗ Postal address: Department of Statistics, Colorado State University, Fort Collins, CO 80532, USA.
∗∗∗Postal address: Department of Mathematics, Monash University, Clayton, VIC 3168, Australia.

Abstract

For the haploid genetic model of Moran, the joint distribution of the numbers of distinct ancestors of a collection of nested subsamples is derived. These results are shown to apply to the diffusion approximations of a wide variety of other genetic models, including the Wright–Fisher process. The results allow us to relate the ancestries of populations sampled at different times. Analogous results for a line-of-descent process that incorporates the effect of mutation are given. Some results about the ages of alleles in an infinite-alleles model are described.

Type
Research Article
Copyright
Copyright © Applied Probability Trust 1984 

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