Characterization of gene pools of three <Emphasis Type="Italic">Pinus pumila</Emphasis> (Pall.) Regel populations at the range margins |
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Authors: | O V Nakonechnaya A B Kholina O G Koren V Jane?ek A Kohutka R Gebauer Y N Zhuravlev |
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Institution: | 1.Institute of Biology and Soil Science, Far Eastern Branch,Russian Academy of Sciences,Vladivostok,Russia;2.Department of Dendrology and Forest Tree Breeding,Czech University of Life Sciences in Prague,Prague,Czech Republic |
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Abstract: | Genetic variation of Siberian dwarf pine Pinus pumila (Pall.) Regel was characterized in three marginal populations in southwestern, southern and eastern parts of the natural
species range (Baikal Area, Primorye, Kamchatka) using isozyme analysis. Analysis involving 16 isozyme loci encoding ten enzyme
systems was conducted. Our results confirm that P. pumila is one of the most polymorphic species in the genus Pinus. Three marginal populations exhibited high genetic variation (P
95 = 68.8%, H
o = 0.247, H
e = 0.291). Populations heterogeneity and significantly high level of divergence in coniferous (F
ST = 0.050, D
N = 0.044) reflect their genetic originality. In summary, it was shown that the level of genetic variation characteristic for
P. pumila in other parts of the not only is reproduced in the populations examined but even is close to maximum there. |
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Keywords: | |
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