Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

[Text] / I. V. Tikhonova // Contemp. Probl. Ecol. - 2011. - Vol. 4, Is. 6. - P658-664, DOI 10.1134/S1995425511060154. - Cited References: 36. - The work was performed with partial financial support of the Russian Foundation for Basic Research no. 11-04-98008-p_Siberia-a and no. 11-04-92226-Mong_a. . - 7. - ISSN 1995-4255РУБ Ecology

Аннотация: Dwarf and typical trees of Pinus silvestris L. in Shirinskaya forest-steppe are compared on variability of vegetative and generative organs and quantitative and qualitative characteristics of fruiting. Special attention is paid to investigation of the correlation structure of characters in the compared samples. It has been determined that the dwarf pines are characterized by high variability of dimensional and qualitative characteristics. In spite of generally low reproductive potential of dwarf trees some species are distinguished by regular and abundant fruiting. They are characterized by higher correlation of characteristics and tendency to gonochorism. In spite of generally small contribution of dwarf species into the reproduction of pine population, it is quite consistent with the small area occupied by rocks within the studied territory. Some species are distinguished by higher reproductive potential and may be used to solve the problems of selection.

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Держатели документа:
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660026, Russia

Доп.точки доступа:
Tikhonova, I.V.

[Text] / I. V. Tikhonova, V. L. Semerikov // Russ. J. Ecol. - 2010. - Vol. 41, Is. 5. - P372-377, DOI 10.1134/S1067413610050024. - Cited References: 39. - The study was supported by the Krasnoyarsk Regional Science Foundation and Russian Foundation for Basic Research (project no. 07-04-96808) and the Siberian Branch of the Russian Academy of Sciences (project no. 53). . - 6. - ISSN 1067-4136РУБ Ecology

Аннотация: Polymorphism of 11 enzyme systems has been studied in dwarf Scots pine trees occurring on sand dunes and crags in two populations of southern Central Siberia. High genotypic variability of dwarfs and their similarity to normal trees in basic indices of genetic diversity have been revealed. Both populations, including normal and dwarf trees, are in the Hardy-Weinberg equilibrium. The sample of dwarf trees has proved to differ from the "norm" in showing an age-related trend toward decreased heterozygosity. The observed linkage disequilibrium at some pairs of loci can be explained by unequal contributions of trees to population reproduction or by a recent bottleneck event. The populations studied are similar to other Scots pine populations from the Asian part of the species range. Increased frequencies of some rare alleles in the populations from Tuva provide evidence for the probable presence of a glacial refugium for pine in this region.

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Держатели документа:
[Tikhonova, I. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Akademgorodok, Russia
[Semerikov, V. L.] Russian Acad Sci, Ural Branch, Inst Plant and Anim Ecol, Ekaterinburg 620144, Russia

Доп.точки доступа:
Tikhonova, I.V.; Semerikov, V.L.