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Contrasting evolutionary histories of the legless lizards slow worms (Anguis) shaped by the topography of the Balkan Peninsula

D. Jablonski, D. Jandzik, P. Mikulíček, G. Džukić, K. Ljubisavljević, N. Tzankov, D. Jelić, E. Thanou, J. Moravec, V. Gvoždík,

. 2016 ; 16 (-) : 99. [pub] 20160510

Jazyk angličtina Země Anglie, Velká Británie

Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc17000257

BACKGROUND: Genetic architecture of a species is a result of historical changes in population size and extent of distribution related to climatic and environmental factors and contemporary processes of dispersal and gene flow. Population-size and range contractions, expansions and shifts have a substantial effect on genetic diversity and intraspecific divergence, which is further shaped by gene-flow limiting barriers. The Balkans, as one of the most important sources of European biodiversity, is a region where many temperate species persisted during the Pleistocene glaciations and where high topographic heterogeneity offers suitable conditions for local adaptations of populations. In this study, we investigated the phylogeographical patterns and demographic histories of four species of semifossorial slow-worm lizards (genus Anguis) present in the Balkan Peninsula, and tested the relationship between genetic diversity and topographic heterogeneity of the inhabited ranges. RESULTS: We inferred phylogenetic relationships, compared genetic structure and historical demography of slow worms using nucleotide sequence variation of mitochondrial DNA. Four Anguis species with mostly parapatric distributions occur in the Balkan Peninsula. They show different levels of genetic diversity. A signature of population growth was detected in all four species but with various courses in particular populations. We found a strong correlation between genetic diversity of slow-worm populations and topographic ruggedness of the ranges (mountain systems) they inhabit. Areas with more rugged terrain harbour higher genetic diversity. CONCLUSIONS: Phylogeographical pattern of the genus Anguis in the Balkans is concordant with the refugia-within-refugia model previously proposed for both several other taxa in the region and other main European Peninsulas. While slow-worm populations from the southern refugia mostly have restricted distributions and have not dispersed much from their refugial areas, populations from the extra-Mediterranean refugia in northern parts of the Balkans have colonized vast areas of eastern, central, and western Europe. Besides climatic historical events, the heterogeneous topography of the Balkans has also played an important role in shaping genetic diversity of slow worms.

Citace poskytuje Crossref.org

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$a Jablonski, Daniel $u Department of Zoology, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, 842 15, Bratislava, Slovakia. daniel.jablonski@balcanica.cz.
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$a BACKGROUND: Genetic architecture of a species is a result of historical changes in population size and extent of distribution related to climatic and environmental factors and contemporary processes of dispersal and gene flow. Population-size and range contractions, expansions and shifts have a substantial effect on genetic diversity and intraspecific divergence, which is further shaped by gene-flow limiting barriers. The Balkans, as one of the most important sources of European biodiversity, is a region where many temperate species persisted during the Pleistocene glaciations and where high topographic heterogeneity offers suitable conditions for local adaptations of populations. In this study, we investigated the phylogeographical patterns and demographic histories of four species of semifossorial slow-worm lizards (genus Anguis) present in the Balkan Peninsula, and tested the relationship between genetic diversity and topographic heterogeneity of the inhabited ranges. RESULTS: We inferred phylogenetic relationships, compared genetic structure and historical demography of slow worms using nucleotide sequence variation of mitochondrial DNA. Four Anguis species with mostly parapatric distributions occur in the Balkan Peninsula. They show different levels of genetic diversity. A signature of population growth was detected in all four species but with various courses in particular populations. We found a strong correlation between genetic diversity of slow-worm populations and topographic ruggedness of the ranges (mountain systems) they inhabit. Areas with more rugged terrain harbour higher genetic diversity. CONCLUSIONS: Phylogeographical pattern of the genus Anguis in the Balkans is concordant with the refugia-within-refugia model previously proposed for both several other taxa in the region and other main European Peninsulas. While slow-worm populations from the southern refugia mostly have restricted distributions and have not dispersed much from their refugial areas, populations from the extra-Mediterranean refugia in northern parts of the Balkans have colonized vast areas of eastern, central, and western Europe. Besides climatic historical events, the heterogeneous topography of the Balkans has also played an important role in shaping genetic diversity of slow worms.
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$a Jandzik, David $u Department of Zoology, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, 842 15, Bratislava, Slovakia. Department of Ecology and Evolutionary Biology (EBIO), University of Colorado, Ramaley N122, Campus, Box 334, 80309-0334, Boulder, CO, USA.
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$a Mikulíček, Peter $u Department of Zoology, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, 842 15, Bratislava, Slovakia.
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$a Džukić, Georg $u Department of Evolutionary Biology, Institute for Biological Research "Siniša Stanković", 11060, Belgrade, Serbia.
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$a Ljubisavljević, Katarina $u Department of Evolutionary Biology, Institute for Biological Research "Siniša Stanković", 11060, Belgrade, Serbia.
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$a Tzankov, Nikolay $u Department of Vertebrates, National Museum of Natural History, Tsar Osvoboditel Blvd. 1, 1000, Sofia, Bulgaria.
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$a Jelić, Dušan $u Croatian Institute for Biodiversity, Croatian Herpetological Society Hyla, I, Breznička 5a, 10000, Zagreb, Croatia.
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$a Thanou, Evanthia $u Department of Biology, Section of Animal Biology, School of Natural Sciences, University of Patras, GR-26500, Patras, Greece.
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$a Moravec, Jiří $u Department of Zoology, National Museum, 193 00, Prague, Czech Republic.
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$a Gvoždík, Václav $u Department of Zoology, National Museum, 193 00, Prague, Czech Republic. Institute of Vertebrate Biology, Czech Academy of Sciences, 603 65, Brno, Czech Republic.
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