Article (Scientific journals)
Conservation genetics and population history of the threatened European mink Mustela lutreola, with an emphasis on the west European population.
Michaux, Johan; Hardy, O. J.; Justy, F. et al.
2005In Molecular Ecology, 14 (8), p. 2373-88
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Keywords :
Animals; Base Sequence; Bayes Theorem; Breeding/methods; Cluster Analysis; Conservation of Natural Resources; DNA Primers; DNA, Mitochondrial/genetics; Demography; Europe; Founder Effect; Gene Frequency; Genetic Variation; Genetics, Population; Geography; Haplotypes/genetics; Likelihood Functions; Microsatellite Repeats/genetics; Mink/genetics; Models, Genetic; Molecular Sequence Data; Phylogeny; Sequence Analysis, DNA
Abstract :
[en] In species of great conservation concern, special attention must be paid to their phylogeography, in particular the origin of animals for captive breeding and reintroduction. The endangered European mink lives now in at least three well-separated populations in northeast, southeast and west Europe. Our aim is to assess the genetic structure of these populations to identify 'distinct population segments' (DPS) and advise captive breeding programmes. First, the mtDNA control region was completely sequenced in 176 minks and 10 polecats. The analysis revealed that the western population is characterized by a single mtDNA haplotype that is closely related to those in eastern regions but nevertheless, not found there to date. The northeast European animals are much more variable (pi = 0.012, h = 0.939), with the southeast samples intermediate (pi = 0.0012, h = 0.469). Second, 155 European mink were genotyped using six microsatellites. The latter display the same trends of genetic diversity among regions as mtDNA [gene diversity and allelic richness highest in northeast Europe (H(E) = 0.539, R(S) = 3.76), lowest in west Europe (H(E) = 0.379, R(S) = 2.12)], and provide evidences that the southeast and possibly the west populations have undergone a recent bottleneck. Our results indicate that the western population derives from a few animals which recently colonized this region, possibly after a human introduction. Microsatellite data also reveal that isolation by distance occurs in the western population, causing some inbreeding because related individuals mate. As genetic data indicate that the three populations have not undergone independent evolutionary histories for long (no phylogeographical structure), they should not be considered as distinct DPS. In conclusion, the captive breeding programme should use animals from different parts of the species' present distribution area.
Disciplines :
Zoology
Author, co-author :
Michaux, Johan  ;  Université de Liège - ULiège > Département des sciences de la vie > Génétique
Hardy, O. J.
Justy, F.
Fournier, P.
Kranz, A.
Cabria, M.
Davison, A.
Rosoux, R.
Libois, Roland ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Zoogéographie - Département des sciences et gestion de l'environnement
Language :
English
Title :
Conservation genetics and population history of the threatened European mink Mustela lutreola, with an emphasis on the west European population.
Publication date :
2005
Journal title :
Molecular Ecology
ISSN :
0962-1083
eISSN :
1365-294X
Publisher :
Blackwell Publishing, Oxford, United Kingdom
Volume :
14
Issue :
8
Pages :
2373-88
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 November 2010

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