| UDC 575.174.015.3+582.475 |
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The Allozyme Variation Structure and Genetic Relationships Between Fir Species – Abies sachalinensis Fr. Schmidt (Sakhalin) and Abies nephrolepis (Trautv.) Maxim.. |
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| © 2008 S. A. Semerikova, V. L. Semerikov |
| Institute of plant and animal ecology UB RAS, Ekaterinburg |
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| A genetic diversity in two Far Eastern fir species – Abies nephrolepis and A. sachalinensis was studied in their areas by means of eleven allozyme loci, which code eight enzyme systems. The level of polymorphism is in general higher in ten populations of A. sachalinensis (A = 1.57, P99 = 50.9%, He = 0.096, in average) than in five populations of A. nephrolepis (A = 1.38, P99 = 29.1%, He = 0.083, in average). The population subdivision values are higher in A. sachalinensis (Fst = 0.071) than in A. nephrolepis (Fst = 0.044). Fir populations reported from the northern Sakhalin areas are genetically transitive between A. nephrolepis and A. sachalinensis in southern Sakhalin, and this testifies to an introgressive hybridzation zone of the two studied species. The data obtained are interpreted from paleogeographic viewpoints. |
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| Keywords: Abies, fir tree, conifers, genetic variation, population differentiation, allozyme, hybridization, paleogeography, Sakhalin. |
| Full text [In Russian] |
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