Colonization history of Scots pine in Eastern Europe and North Asia based on mitochondrial DNA variation |
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| Authors: | Vladimir L Semerikov Svetlana A Semerikova Yuliya A Putintseva Vyacheslav V Tarakanov Irina V Tikhonova Anatoliy I Vidyakin Natalia V Oreshkova " target="_blank">Konstantin V Krutovsky |
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| Institution: | 1.Institute of Plant and Animal Ecology,Ural Branch of the Russian Academy of Sciences,Ekaterinburg,Russia;2.Laboratory of Forest Genomics, Genome Research and Education Center,Siberian Federal University,Krasnoyarsk,Russia;3.West-Siberian Branch of the V.N. Sukachev Institute of Forest,Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences,Novosibirsk,Russia;4.Laboratory of Forest Genetics and Selection, V.N. Sukachev Institute of Forest,Federal Research Center “Krasnoyarsk Science Center” of the Siberian Branch of the Russian Academy of Sciences,Krasnoyarsk,Russia;5.Institute of Biology, Komi Scientific Center,Ural Branch of the Russian Academy of Sciences,Kirov,Russia;6.Department of Forest Genetics and Forest Tree Breeding,Georg-August University of G?ttingen,G?ttingen,Germany;7.Laboratory of Population Genetics, N. I. Vavilov Institute of General Genetics,Russian Academy of Sciences,Moscow,Russia;8.Department of Ecosystem Science and Management,Texas A&M University,College Station,USA |
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| Abstract: | During Quaternary glaciations, the ranges of Northern Eurasia forest species periodically experienced contraction followed by subsequent re-colonizations in the interglacial intervals. However, unlike the broadleaf trees of temperate forests, taiga species seem not to have retreated fully to southern regions in unfavorable periods and possibly survived at mid-latitudes in multiple refugia. Here, we report a study of genetic variation of three mitochondrial DNA markers in 90 populations of Scots pine (Pinus sylvestris) located from Eastern Europe to Eastern Siberia. The geographic distribution of seven mitotypes demonstrated the split between western and eastern populations approximately along the 38th meridian. Genetic diversity in the western part was significantly higher than in the eastern one. Five mitotypes were western- and one eastern-specific. One mitotype was common in both regions, but in the eastern part it occurred only in the South Urals and adjacent areas. The geographic structure in the mitotype distribution supports a hypothesis of post-glacial re-colonization of the studied territory from the European and Ural refugia. |
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