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1 April 2007 ESTIMATION OF THE NUMBER OF INDIVIDUALS FOUNDING COLONIZED POPULATIONS
Eric C. Anderson, Montgomery Slatkin
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Abstract

A method for estimating the number of founding chromosomes in an isolated population is introduced. The method assumes that n/2 diploid individuals are sampled from a population and that alleles are identified at L unlinked loci. The population is assumed to have been founded T generations in the past by individuals carrying c chromosomes drawn randomly from a known source population, which has also been sampled. If c is small and the population grew rapidly after it was founded, accurate estimates of c can be obtained and those estimates are not sensitive to details of the history of population sizes. If c is larger or the population remained small after it was founded, then estimates of c depend on the history of population sizes. We test the performance of our method on simulated data and demonstrate its use on data from a rainbow trout (Oncorhynchus mykiss) population.

Eric C. Anderson and Montgomery Slatkin "ESTIMATION OF THE NUMBER OF INDIVIDUALS FOUNDING COLONIZED POPULATIONS," Evolution 61(4), 972-983, (1 April 2007). https://doi.org/10.1111/j.1558-5646.2007.00080.x
Received: 8 June 2006; Accepted: 4 December 2006; Published: 1 April 2007
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KEYWORDS
Bottleneck
coalescent
importance sampling
invasions
Likelihood
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