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Recent foundation of Mexican populations of pearl oysters (Pteria sterna) revealed by lack of genetic variation on two mitochondrial genes

Published online by Cambridge University Press:  31 March 2005

S. Arnaud-Haond ,
F. Blanc ,
F. Bonhomme  and
M. Monteforte
S. Arnaud-Haond
Affiliation:
Laboratoire ‘Génome, Populations, Interactions’, CNRS UMR 5000—Université de Montpellier II, Station Méditerranéenne de l'Environnement Littoral, 1 Quai de la daurade, 34200 Sète, France
F. Blanc
Affiliation:
Laboratoire de Zoogéographie, Université Montpellier III, Route de Mende, 34199 Montpellier Cedex 5, France
F. Bonhomme
Affiliation:
Laboratoire ‘Génome, Populations, Interactions’, CNRS UMR 5000—Université de Montpellier II, Station Méditerranéenne de l'Environnement Littoral, 1 Quai de la daurade, 34200 Sète, France
M. Monteforte
Affiliation:
Centro de Investigaciones Biologicas del Noroeste S.C., PO Box 128, La Paz, B. C. S., México, Mexico
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Abstract

The rainbow pearl oyster Pteria sterna is distributed along the Mexican Pacific coasts and Gulf of Baja California, where it represents a great economic potential. Five sampled populations collected in Baja California were used to screen two mitochondrial DNA genes that have proven useful in population genetics studies of several other bivalve species. The lack of polymorphism detected in these samples suggests a recent event of very low population size, most likely a founder event, which is congruent with the absence of P. sterna in the fossil records in Baja California.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 85 , Issue 2 , April 2005 , pp. 363 - 366
Copyright
2005 Marine Biological Association of the United Kingdom

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