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

/ T. C. Harrington [et al.] // Plant Disease. - 2002. - Vol. 86, Is. 4. - P418-422 . - ISSN 0191-2917
Аннотация: Ceratocystis laricicola and C. polonica are fungal symbionts of bark beetle species of the genus lps that attack species of Larix and Picea, respectively, across Eurasia. Earlier studies found that these fungal species were morphologically identical, had similar isozymes patterns, and had identical internal transcribed spacer (ITS) sequences of the rDNA operon. We analyzed 27 isolates from Europe, southwestern Siberia (Russia) and Japan, representing the known geographic ranges of the two species. Phylogenetic analysis of the DNA sequences of a portion of the MAT-2 idiomorph showed these species to be distinct, with the Japanese isolates of C. laricicola having a sequence slightly different (5 bp) from those of the Russian and European isolates of C. laricicola. Sexual compatibility tests showed full interfertility among isolates of C. polonica from Europe, Russia and Japan, but isolates of C. polonica were not fully interfertile with isolates of C. laricicola. A Russian and a European isolate of C. laricicola mated with each other but not with the Japanese isolates of C. laricicola. Mature L. sibirica and P. obovata were inoculated with isolates of C. laricicola and C. polonica from Europe, Russia, and Japan, and measurement of lesions in the inner bark/cambium region demonstrated strong host specialization. The data suggest that the two fungal species are very closely related and are distinguished primarily by their physiological specialization to the hosts of their bark beetle vectors.

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Держатели документа:
Department of Plant Pathology, Iowa State University, Ames, IO 50011, United States
Laboratory of Microbiology, Sukachev Institute of Forestry, Krasnoyarsk, Russian Federation
Department of Plant Pathology, Iowa State University, United States

Доп.точки доступа:
Harrington, T.C.; Pashenova, N.V.; McNew, D.L.; Steimel, J.; Konstantinov, M.Yu.

/ A. K. Ekart [et al.] // Russ. J. Gen. - 2016. - Vol. 52, Is. 3. - P273-280, DOI 10.1134/S1022795416030054 . - ISSN 1022-7954
Аннотация: The variability of 21 allozyme and three microsatellite loci of chloroplast DNA (cpDNA) was studied in the populations of Siberian spruce (Picea obovata Ledeb.) from Irkutsk oblast, Magadan oblast, Buryatia, and Mongolia. It was demonstrated that the highest level of genetic diversity among the examined populations at both allozyme and microsatellite loci was observed in the Tulyushka population from Irkutsk oblast. The lowest level of genetic diversity was observed in marginal isolated populations of Bogd Uul and Magadan. In the relict spruce population from Olkhon Island, differing from the other populations in the lowest allelic diversity of both types of markers, no expected decline of expected heterozygosity and haplotype diversity was observed. In this population, the variability parameters mentioned were close to the population mean. The obtained intrapopulation and intraspecific variability parameters of allozyme and microsatellite loci of chloroplast DNA and the data on the population differentiation at these loci indicate that the given markers can be used for the analysis of the population structure of Siberian spruce. © 2016, Pleiades Publishing, Inc.

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Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russian Federation

Доп.точки доступа:
Ekart, A. K.; Semerikova, S. A.; Semerikov, V. L.; Larionova, A. Y.; Kravchenko, A. N.; Dymshakova, O. S.

/ I. V. Tikhonova, A. K. Ekart, A. N. Kravchenko, N. A. Tikhonova // Russ. J. Genet. - 2021. - Vol. 57, Is. 3. - P297-310, DOI 10.1134/S1022795421030133. - Cited References:54. - This work was performed within the budgetary project of the West Siberian Department of the Sukachev Institute of Forest, Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences (project no. 0356-2019-0024), and was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk krai, and Krasnoyarsk Regional Science Foundation within the scientific project no. 18-44-240002 "Studying Genetic Diversity of the Main Forest-Forming Coniferous Species in Suburban Forests of Large Industrial Centers of Siberia." . - ISSN 1022-7954. - ISSN 1608-3369РУБ Genetics & Heredity

Аннотация: The variability of polymorphic enzyme loci was studied in 1180 undergrowth individuals in four Pinus sylvestris L., Picea obovata Ledeb., and Abies sibirica Ledeb. populations growing in the southern taiga of Central Siberia in the regions covered by felling of different intensity and in the control (including in 15 Scots pine samples, 13 Siberian spruce samples, and 16 Siberian fir samples). The results of the comparative analysis of data confirm a significant reduction in genetic diversity in the young generation of trees of three coniferous species at the place of high-intensity clear large-scale and selective felling (by 8-30% in the number of alleles and level of polymorphism, by 14-75% in the number of rare alleles). It was noted that the gene pools of populations of dark coniferous species are more sensitive to anthropogenic effects as compared with light coniferous species (Scots pine). The features of genetic variability of isozymes in Siberian fir populations indicate a significant loss of intraspecific allelic diversity of enzyme loci by the species, which requires a special approach to the analysis of the effect of forest management on populations of this species and preservation of its genetic diversity. Of the used indices of genetic variability, rare alleles of polymorphic loci in general (and especially the alleles of low polymorphic loci) are the most informative for the purposes of genetic monitoring of coniferous forests.

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Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, West Siberian Dept,Sukachev Inst Forest, Novosibirsk 630082, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Sukachev Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Tikhonova, I., V; Ekart, A. K.; Kravchenko, A. N.; Tikhonova, N. A.; West Siberian Department of the Sukachev Institute of Forest, Federal Research Center Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences [0356-2019-0024]; Russian Foundation for Basic Research, Government of Krasnoyarsk krai; Krasnoyarsk Regional Science Foundation [18-44-240002]