Time to the most recent common ancestor and divergence times of populations of common chaffinches (Fringilla coelebs) in Europe and North Africa: insights into Pleistocene refugia and current levels of migration

Evolution; International Journal of Organic Evolution
Cortland K Griswold, Allan J Baker

Abstract

We analyzed sequences from a 275-bp hypervariable region in the 5' end of the mitochondrial DNA control region in 190 common chaffinches (Fringilla coelebs) from 19 populations in Europe and North Africa, including new samples from Greece and Morocco. Coalescent techniques were applied to estimate the time to the most recent common ancestor (TMRCA) and divergence times of these populations. The first objective of this study was to infer the locations of refugia where chaffinches survived the last glacial episode, and this was achieved by estimating the TMRCA of populations in regions surrounding the Mediterranean that were unglaciated in the late Pleistocene. Although extant populations in Iberia, Corsica, Greece, and North Africa harbor haplotypes that are basal in a phylogenetic tree, this information alone cannot be used to infer that these localities served as refugia, because it is impossible to infer the ages of populations and their divergence times without also considering the population genetic processes of mutation, migration, and drift. Provided we assume the TMRCAs of populations are a reasonable estimate of a population's age, coalescent-based methods place resident populations in Iberia, Corsica, Greece, and North...Continue Reading

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Citations

Dec 22, 2012·Science·Ben G HoltCarsten Rahbek
Feb 1, 2005·Frontiers in Zoology·Godfrey M Hewitt
Jun 10, 2008·Molecular Phylogenetics and Evolution·Zachariah GompertChris C Nice
Nov 17, 2007·Evolution; International Journal of Organic Evolution·A Townsend Peterson, Arpád S Nyári
Oct 19, 2007·Evolution; International Journal of Organic Evolution·Ana Carolina Carnaval, John M Bates
Jul 18, 2006·Molecular Ecology·Marylène Boulet, H Lisle Gibbs
Sep 2, 2011·Molecular Ecology·Juan Carlos IlleraLaura Kvist
Feb 14, 2006·Molecular Phylogenetics and Evolution·Alban GuillaumetPierre-Andre Crochet
Oct 1, 2013·Current Biology : CB·Robert F LachlanCarel ten Cate
Nov 24, 2011·Molecular Phylogenetics and Evolution·Renata Cecília AmaroAna Carolina Carnaval
Jul 22, 2005·Journal of Evolutionary Biology·T E SteevesV L Friesen

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