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Balancing a Cline by Influx of Migrants: A Genetic Transition in Water Frogs of Eastern Greece
Journal article   Open access   Peer reviewed

Balancing a Cline by Influx of Migrants: A Genetic Transition in Water Frogs of Eastern Greece

Hansjürg Hotz, Peter Beerli, Thomas Uzzell, Gaston-Denis Guex, Nicolas B. M. Pruvost, Robert Schreiber and Jörg Plötner
The Journal of heredity, v 104(1)
01 Nov 2012
DOI: https://doi.org/10.1093/jhered/ess086
PMID: 23125403
Featured in Collection :   UN Sustainable Development Goals @ Drexel
url
https://academic.oup.com/jhered/article-pdf/104/1/57/14138374/ess086.pdfView
Published, Version of Record (VoR) Open
url
https://doi.org/10.1093/jhered/ess086View
Published, Version of Record (VoR) Open

Abstract

allozymes Bayes factors gene flow hybridization migration mitochondrial DNA model selection Original Pelophylax sympatry water frogs
Variation patterns of allozymes and of ND3 haplotypes of mitochondrial DNA reveal a zone of genetic transition among western Palearctic water frogs extending across northeastern Greece and European Turkey. At the western end of the zone, allozymes characteristic of Central European frogs known as Pelophylax ridibundus predominate, whereas at the eastern end, alleles characteristic of western Anatolian water frogs ( P . cf. bedriagae ) prevail. The ND3 haplotypes reveal 2 major clades, 1 characteristic of Anatolian frogs, the other of European; the European clade itself has distinct eastern and western subclades. Both the 2 major clades and the 2 subclades overlap within the transition zone. Using Bayesian model selection methods, allozyme data suggest considerable immigration into the Nestos River area from eastern and western populations. In contrast, the ND3 data suggest that migration rates are so high among all locations that they form a single panmictic unit; the best model for allozymes is second best for mitochondrial DNA (mtDNA). Nuclear markers (allozymes), which have roughly 4 times as deep a coalescent history as mtDNA data and thus may reflect patterns over a longer time, indicate that eastern and western refugial populations have expanded since deglaciation (in the last 10 000 years) and have met near the Nestos River, whereas the mtDNA with its smaller effective population size has already lost the signal of partitioning into refugia.

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Domestic collaboration
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Web of Science research areas
Evolutionary Biology
Genetics & Heredity
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