La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Widespread selective sweeps affecting microsatellites in Drosophila populations adapting to captivity: Implications for captive breeding programs
Auteurs :	Margaret E. Montgomery, Auteur ; Lynn M. Woodworth, Auteur ; Phillip R. England, Auteur ; David A. Briscoe, Auteur ; Richard Frankham, Auteur
Type de document :	Article
Dans :	Biological Conservation (143(8) AUG 2010)
Article en page(s) :	1842-1849
Langues:	Anglais
Résumé :	Many threatened species are being maintained in captivity to save them from extinction, often with the eventual aim of reintroduction. The objective of genetic management in captivity is to 'freeze' evolution i.e. to avoid genetic adaptation to captivity and to retain genetic diversity. Most current genetic management of threatened species addresses the latter, but does not explicitly address the former. The theory underlying current genetic management and its practical implementation assumes neutrality of loci. However, genetic adaptation in captive populations may cause non-neutral behavior at neutral loci due to selective sweeps (hitchhiking) caused by rapid allele frequency changes at linked fitness loci. We compared changes in microsatellite genetic diversity at eight non-coding loci with neutral predictions in

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