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ESTIMATION OF THE NUMBER OF INDIVIDUALS FOUNDING COLONIZED POPULATIONS
Author(s) -
Anderson Eric C.,
Slatkin Montgomery
Publication year - 2007
Publication title -
evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.84
H-Index - 199
eISSN - 1558-5646
pISSN - 0014-3820
DOI - 10.1111/j.1558-5646.2007.00080.x
Subject(s) - biology , population , effective population size , population size , estimation , rainbow trout , population genetics , ploidy , statistics , demography , genetics , genetic variation , fish <actinopterygii> , fishery , mathematics , gene , management , sociology , economics
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.