TY - GEN A1 - Drygala, Frank A1 - Korablev, Nikolay A1 - Ansorge, Hermann A1 - Fickel, Jörns A1 - Isomursu, Marja A1 - Elmeros, Morten A1 - Kowalczyk, Rafał A1 - Baltrunaite, Laima A1 - Balciauskas, Linas A1 - Saarma, Urmas A1 - Schulze, Christoph A1 - Borkenhagen, Peter A1 - Frantz, Alain C. T1 - Homogenous population genetic structure of the non-native raccoon dog (Nyctereutes procyonoides) in Europe as a result of rapid population expansion T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - The extent of gene flow during the range expansion of non-native species influences the amount of genetic diversity retained in expanding populations. Here, we analyse the population genetic structure of the raccoon dog (Nyctereutes procyonoides) in north-eastern and central Europe. This invasive species is of management concern because it is highly susceptible to fox rabies and an important secondary host of the virus. We hypothesized that the large number of introduced animals and the species' dispersal capabilities led to high population connectivity and maintenance of genetic diversity throughout the invaded range. We genotyped 332 tissue samples from seven European countries using 16 microsatellite loci. Different algorithms identified three genetic clusters corresponding to Finland, Denmark and a large 'central' population that reached from introduction areas in western Russia to northern Germany. Cluster assignments provided evidence of long-distance dispersal. The results of an Approximate Bayesian Computation analysis supported a scenario of equal effective population sizes among different pre-defined populations in the large central cluster. Our results are in line with strong gene flow and secondary admixture between neighbouring demes leading to reduced genetic structuring, probably a result of its fairly rapid population expansion after introduction. The results presented here are remarkable in the sense that we identified a homogenous genetic cluster inhabiting an area stretching over more than 1500km. They are also relevant for disease management, as in the event of a significant rabies outbreak, there is a great risk of a rapid virus spread among raccoon dog populations. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 540 KW - distance seed dispersial KW - medium-sized carnivores KW - biological invasion KW - Southeast Finland KW - rabies spread KW - F-statistics KW - N-E KW - diversity KW - history KW - colonization Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-410921 SN - 1866-8372 IS - 540 ER - TY - JOUR A1 - Drygala, Frank A1 - Korablev, Nikolay A1 - Ansorge, Hermann A1 - Fickel, Jörns A1 - Isomursu, Marja A1 - Elmeros, Morten A1 - Kowalczyk, Rafal A1 - Baltrunaite, Laima A1 - Balciauskas, Linas A1 - Saarma, Urmas A1 - Schulze, Christoph A1 - Borkenhagen, Peter A1 - Frantz, Alain C. T1 - Homogenous Population Genetic Structure of the Non-Native Raccoon Dog (Nyctereutes procyonoides) in Europe as a Result of Rapid Population Expansion JF - PLoS one N2 - The extent of gene flow during the range expansion of non-native species influences the amount of genetic diversity retained in expanding populations. Here, we analyse the population genetic structure of the raccoon dog (Nyctereutes procyonoides) in north-eastern and central Europe. This invasive species is of management concern because it is highly susceptible to fox rabies and an important secondary host of the virus. We hypothesized that the large number of introduced animals and the species’ dispersal capabilities led to high population connectivity and maintenance of genetic diversity throughout the invaded range. We genotyped 332 tissue samples from seven European countries using 16 microsatellite loci. Different algorithms identified three genetic clusters corresponding to Finland, Denmark and a large ‘central’ population that reached from introduction areas in western Russia to northern Germany. Cluster assignments provided evidence of long-distance dispersal. The results of an Approximate Bayesian Computation analysis supported a scenario of equal effective population sizes among different pre-defined populations in the large central cluster. Our results are in line with strong gene flow and secondary admixture between neighbouring demes leading to reduced genetic structuring, probably a result of its fairly rapid population expansion after introduction. The results presented here are remarkable in the sense that we identified a homogenous genetic cluster inhabiting an area stretching over more than 1500km. They are also relevant for disease management, as in the event of a significant rabies outbreak, there is a great risk of a rapid virus spread among raccoon dog populations. Y1 - 2016 U6 - https://doi.org/10.1371/journal.pone.0153098 SN - 1932-6203 VL - 11 SP - 933 EP - 938 PB - PLoS CY - San Fransisco ER - TY - JOUR A1 - Barlow, Axel A1 - Cahill, James A. A1 - Hartmann, Stefanie A1 - Theunert, Christoph A1 - Xenikoudakis, Georgios A1 - Gonzalez-Fortes, Gloria M. A1 - Paijmans, Johanna L. A. A1 - Rabeder, Gernot A1 - Frischauf, Christine A1 - Garcia-Vazquez, Ana A1 - Murtskhvaladze, Marine A1 - Saarma, Urmas A1 - Anijalg, Peeter A1 - Skrbinsek, Tomaz A1 - Bertorelle, Giorgio A1 - Gasparian, Boris A1 - Bar-Oz, Guy A1 - Pinhasi, Ron A1 - Slatkin, Montgomery A1 - Dalen, Love A1 - Shapiro, Beth A1 - Hofreiter, Michael T1 - Partial genomic survival of cave bears in living brown bears JF - Nature Ecology & Evolution N2 - Although many large mammal species went extinct at the end of the Pleistocene epoch, their DNA may persist due to past episodes of interspecies admixture. However, direct empirical evidence of the persistence of ancient alleles remains scarce. Here, we present multifold coverage genomic data from four Late Pleistocene cave bears (Ursus spelaeus complex) and show that cave bears hybridized with brown bears (Ursus arctos) during the Pleistocene. We develop an approach to assess both the directionality and relative timing of gene flow. We find that segments of cave bear DNA still persist in the genomes of living brown bears, with cave bears contributing 0.9 to 2.4% of the genomes of all brown bears investigated. Our results show that even though extinction is typically considered as absolute, following admixture, fragments of the gene pool of extinct species can survive for tens of thousands of years in the genomes of extant recipient species. Y1 - 2018 U6 - https://doi.org/10.1038/s41559-018-0654-8 SN - 2397-334X VL - 2 IS - 10 SP - 1563 EP - 1570 PB - Nature Publ. Group CY - London ER -