Article,

The structure of the allelic partition of the total population for Galton-Watson processes with neutral mutations

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Ann. Probab., 37 (4): 1502--1523 (2009)
DOI: 10.1214/08-AOP441

Abstract

We consider a (sub-)critical Galton­Watson process with neutral muta- tions (infinite alleles model), and decompose the entire population into clus- ters of individuals carrying the same allele. We specify the law of this allelic partition in terms of the distribution of the number of clone-children and the number of mutant-children of a typical individual. The approach combines an extension of Harris representation of Galton­Watson processes and a version of the ballot theorem. Some limit theorems related to the distribution of the allelic partition are also given.

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