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Genetic variation in founder populations of the Mediterranean gecko, Hemidactylus turcicus, across the southern United States

Genetic variation in founder populations of the Mediterranean gecko, Hemidactylus turcicus,... AbstractPopulations initially founded by a small number of individuals risk chance increases in some genetic variants and experience periods during which only a few individuals survive to continue the existence of the population. Colonization of new locations by individuals from these founder populations is expected to result in further reduction of variation in founding populations. Tissue samples from the Mediterranean gecko, Hemidactylus turcicus, were subjected to allozyme electrophoresis to measure gene frequencies at two polymorphic loci for populations initially introduced to port cities along the Gulf Coast, and which are now distributed across the southern United States. We observed levels of polymorphism and heterozygosity that were markedly reduced in populations more distant from coastal localities, consistent with a hypothesis of founder effect. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Amphibia-Reptilia Brill

Genetic variation in founder populations of the Mediterranean gecko, Hemidactylus turcicus, across the southern United States

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0173-5373
eISSN
1568-5381
DOI
10.1163/156853808785112084
Publisher site
See Article on Publisher Site

Abstract

AbstractPopulations initially founded by a small number of individuals risk chance increases in some genetic variants and experience periods during which only a few individuals survive to continue the existence of the population. Colonization of new locations by individuals from these founder populations is expected to result in further reduction of variation in founding populations. Tissue samples from the Mediterranean gecko, Hemidactylus turcicus, were subjected to allozyme electrophoresis to measure gene frequencies at two polymorphic loci for populations initially introduced to port cities along the Gulf Coast, and which are now distributed across the southern United States. We observed levels of polymorphism and heterozygosity that were markedly reduced in populations more distant from coastal localities, consistent with a hypothesis of founder effect.

Journal

Amphibia-Reptilia – Brill

Published: Jan 1, 2008

Keywords: ECOLOGY; DEMOGRAPHY; MEDITERRANEAN; LIZARD

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