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

[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.

/ M. A. Polezhaeva, N. A. Tikhonova, E. A. Marchuk [et al.] // J. Plant Res. - 2021, DOI 10.1007/s10265-020-01241-9 . - Article in press. - ISSN 0918-9440
Аннотация: The vast territory of East Asia, including southwestern Beringia, is considered to have been almost ice free during the Pleistocene. Cold-resistant flora may have persisted in this region expanding or contracting its range during the climate cooling. Only a few plant genera have been studied with a sampling area across their entire geographic range in East Asia; therefore, the understanding of the biogeographic history of alpine flora in this region remains limited. In the present study, genetic variation and population structure in 21 populations of the alpine shrub Rhododendron aureum across its range in East Asia were assessed using 18 microsatellite loci. Phylogenetic analyses revealed three main genetic groups: Siberia, Northeast, and North Pacific. According to the geographical pattern of genetic diversity, the North Pacific group includes populations from Kamchatka, south of Russian Far East, and territories close to central Japan. This group is the most diverse and likely diverged earlier than the Siberia and Northeast groups. Ecological niche modeling predicts range expansion of this species during the period of cooling and, together with demographic history, suggests that the divergence between the three main genetic groups predated the Last Glacial Maximum. Similar to other cold-resistant species such as Larix sibirica and Juniperus communis, the pattern of genetic diversity of R. aureum supports the survival of the species at high latitudes during the Pleistocene with limited contribution of the southern populations to expansion of the species range to the Northeast region and Siberia. © 2021, The Botanical Society of Japan.

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Держатели документа:
Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation
V. N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Botanical Garden-Institute, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russian Federation
Institute of the Biological Problems of the North, Far Eastern Branch of the Russian Academy of Sciences, Magadan, Russian Federation
Institute of General and Experimental Biology, Siberian Branch of the Russian Academy of Sciences, Ulan-Ude, Russian Federation

Доп.точки доступа:
Polezhaeva, M. A.; Tikhonova, N. A.; Marchuk, E. A.; Modorov, M. V.; Ranyuk, M. N.; Polezhaev, A. N.; Badmayeva, N. K.; Semerikov, V. L.

/ M. A. Polezhaeva, N. A. Tikhonova, E. A. Marchuk [et al.] // J. Plant Res. - 2021, DOI 10.1007/s10265-020-01241-9. - Cited References:77. - We are grateful to A. Berkutenko, D. Krivenko, A. Shirayev, L. Andriyanova, M. Khoreva, P. Krestov, T. Polyakova, A. Efimova, N. Molokova for the help with material collections. We thank V. Mikryukov for the help with MAXENT figures presentation. We also thank two anonymous reviewers for helpful comments on the manuscript. The collection of samples was supported by the State Contract of the Institute of Plant and Animal Ecology, UB RAS. The laboratory treatments were supported by the Russian Science Foundation for Basic Research (Project No. 20-04-00417 A). . - Article in press. - ISSN 0918-9440. - ISSN 1618-0860РУБ Plant Sciences

Аннотация: The vast territory of East Asia, including southwestern Beringia, is considered to have been almost ice free during the Pleistocene. Cold-resistant flora may have persisted in this region expanding or contracting its range during the climate cooling. Only a few plant genera have been studied with a sampling area across their entire geographic range in East Asia; therefore, the understanding of the biogeographic history of alpine flora in this region remains limited. In the present study, genetic variation and population structure in 21 populations of the alpine shrub Rhododendron aureum across its range in East Asia were assessed using 18 microsatellite loci. Phylogenetic analyses revealed three main genetic groups: Siberia, Northeast, and North Pacific. According to the geographical pattern of genetic diversity, the North Pacific group includes populations from Kamchatka, south of Russian Far East, and territories close to central Japan. This group is the most diverse and likely diverged earlier than the Siberia and Northeast groups. Ecological niche modeling predicts range expansion of this species during the period of cooling and, together with demographic history, suggests that the divergence between the three main genetic groups predated the Last Glacial Maximum. Similar to other cold-resistant species such as Larix sibirica and Juniperus communis, the pattern of genetic diversity of R. aureum supports the survival of the species at high latitudes during the Pleistocene with limited contribution of the southern populations to expansion of the species range to the Northeast region and Siberia.

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Держатели документа:
Russian Acad Sci, Inst Plant & Anim Ecol, Ural Branch, Ekaterinburg, Russia.
Russian Acad Sci, VN Sukachev Inst Forest, Siberian Branch, Krasnoyarsk, Russia.
Russian Acad Sci, Bot Garden Inst, Far Eastern Branch, Vladivostok, Russia.
Russian Acad Sci, Inst Biol Problems North, Far Eastern Branch, Magadan, Russia.
Russian Acad Sci, Inst Gen & Expt Biol, Siberian Branch, Ulan Ude, Russia.

Доп.точки доступа:
Polezhaeva, Maria A.; Tikhonova, Natalya A.; Marchuk, Elena A.; Modorov, Makar, V; Ranyuk, Maryana N.; Polezhaev, Alexey N.; Badmayeva, Natalya K.; Semerikov, Vladimir L.; State Contract of the Institute of Plant and Animal Ecology, UB RAS; Russian Science Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [20-04-00417 A]