Patterns of genetic variation in the endangered European mink (Mustela lutreola L., 1761)

Cabria Maria Teresa, Gonzalez Elena G., Gomez-Moliner Benjamin J., Michaux Johan, Skumatov Dimitry, Kranz Andreas, Fournier Pascal, Palazon Santiago, Zardoya Rafael. 2015. Patterns of genetic variation in the endangered European mink (Mustela lutreola L., 1761). BMC Evolutionary Biology, 15 (141), 15 p.

Url - jeu de données - Entrepôt autre : http://www.ncbi.nlm.nih.gov/nuccore/EU548035 / Url - jeu de données - Entrepôt autre : http://purl.org/phylo/treebase/phylows/study/TB2:S17884

Quartile : Q2, Sujet : GENETICS & HEREDITY / Quartile : Q2, Sujet : EVOLUTIONARY BIOLOGY

Note générale : Jeux de données enregistrés dans la base GenBank du numéro d'accès EU548035 au EU548051

Résumé : Background: The European mink (Mustela lutreola, L. 1761) is a critically endangered mustelid, which inhabits several main river drainages in Europe. Here, we assess the genetic variation of existing populations of this species, including new sampling sites and additional molecular markers (newly developed microsatellite loci specific to European mink) as compared to previous studies. Probabilistic analyses were used to examine genetic structure within and between existing populations, and to infer phylogeographic processes and past demography. Results: According to both mitochondrial and nuclear microsatellite markers, Northeastern (Russia, Estonia and Belarus) and Southeastern (Romania) European populations showed the highest intraspecific diversity. In contrast, Western European (France and Spain) populations were the least polymorphic, featuring a unique mitochondrial DNA haplotype. The high differentiation values detected between Eastern and Western European populations could be the result of genetic drift in the latter due to population isolation and reduction. Genetic differences among populations were further supported by Bayesian clustering and two main groups were confirmed (Eastern vs. Western Europe) along with two contained subgroups at a more local scale (Northeastern vs. Southeastern Europe; France vs. Spain). Conclusions: Genetic data and performed analyses support a historical scenario of stable European mink populations, not affected by Quaternary climate oscillations in the Late Pleistocene, and posterior expansion events following river connections in both North- and Southeastern European populations. This suggests an eastern refuge during glacial maxima (as already proposed for boreal and continental species). In contrast, Western Europe was colonised more recently following either natural expansions or putative human introductions. Low levels of genetic diversity observed within each studied population suggest recent bottleneck events and stress the urgent need for conservation measures to counteract the demographic decline experienced by the European mink.

Mots-clés Agrovoc : vison, génétique des populations, variation génétique, génétique mitochondriale, marqueur génétique, microsatellite, espèce en danger, modèle mathématique, phylogénie, distribution géographique, biogéographie, changement climatique, histoire naturelle, évolution

Mots-clés géographiques Agrovoc : France, Espagne, Fédération de Russie, Estonie, Bélarus, Roumanie, Europe

Mots-clés complémentaires : Mustela lutreola

Classification Agris : L10 - Génétique et amélioration des animaux
L60 - Taxonomie et géographie animales
U30 - Méthodes de recherche
U10 - Informatique, mathématiques et statistiques

Champ stratégique Cirad : Axe 6 (2014-2018) - Sociétés, natures et territoires

Auteurs et affiliations

• Cabria Maria Teresa, Université de Liège (BEL)
• Gonzalez Elena G., CSIC (ESP)
• Gomez-Moliner Benjamin J., Universidad del País Vasco (ESP)
• Michaux Johan, CIRAD-ES-UPR AGIRs (FRA)
• Skumatov Dimitry, Russian Research Institute of Game Management and Fur Farming (RUS)
• Kranz Andreas, BOKU (AUT)
• Fournier Pascal, GREGE (FRA)
• Palazon Santiago, UAB (ESP)
• Zardoya Rafael, CSIC (ESP)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/578803/)

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