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

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Найдено документов в текущей БД: 7

    Meiosis at microsporogenesis in Siberian fir (Abies sibirica Ledeb.) in natural populations and in an arboretum
: материалы временных коллективов / E. V. Bazhina, O. V. Kvitko, E. N. Muratova // Eurasian Journal of Forest Research. - 2008. - Vol. 11-1. - С. 41-49. - Библиогр. в конце ст.

Аннотация: Meiosis in Siberian fir is characterized by asynchrony (prophase I and tetrads in the same microsporangium simultaneously). Up to 4 nucleoli (in naturals stands) and 5 (in an arboretum) are observed at prophase I. The shortest meiotic stages are telophase I and 2. Each of them is observed in 0.2% (in an arboretum) and 0.05% (in natural stands) of cells. In natural stands meiosis elapses quickly (within 2 days). In an arboretum it can continue for more than two weeks. Mainly meiosis is regular. Meiotic irregilarities are, though, also encountered at different stages (fragments, bridges, etc.). In trees growing in an arboretum the total number of irregular cells can reach 17.9%. In natural populations only 11.7-13.3% of cells are irregular. The spectrum of meiotic irregularities in an arboretum is wider than in natural stands.

Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28

Доп.точки доступа:
Kvitko, Ol'ga Viktorovna; Квитко, Ольга Викторовна; Muratova, Elena Nikolayevna; Бажина, Елена Васильевна

    Cytogenetics of Abies sibirica in decline fir stands of West Sayan High Mountains
[Text] / O. V. Kvitko, E. N. Muratova, E. V. Bazhina // Contemp. Probl. Ecol. - 2011. - Vol. 4, Is. 6. - P641-646, DOI 10.1134/S1995425511060129. - Cited References: 25. - The study has been carried out under support of the Russian Foundation of Basic Research (grants no. 08-04-90001Bel_a, 09-04-98000). . - 6. - ISSN 1995-4255
РУБ Ecology
Рубрики:
MICRONUCLEUS ASSAY
Кл.слова (ненормированные):
Abies sibirica -- karyotype -- mixoploidy -- chromosome rearrangements -- pathologies of mitotic cycle -- micronuclei

Аннотация: The cytogenetic study of Abies sibirica seed progenies in declining fir stands of West Sayan High Mountains has been carried out. The increased amount of chromosome and genome mutations, pathologies of mitotic cycle and cells with micronuclei were found at studying. The revealed irregularities may be the result of a long-term exposure to extreme environmental factors and probably reflect the high degree of disturbance of the ecosystem in this region.

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Держатели документа:
[Kvitko, O. V.
Muratova, E. N.
Bazhina, E. V.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Kvitko, O.V.; Muratova, E.N.; Bazhina, E.V.

    Specific features of meiosis in the Siberian Fir (Abies sibirica) in the forest Arboretum of the V. N. Sukachev Institute, Russia
/ E. V. Bazhina, O. V. Kvitko, E. N. Muratova // Biodiversity and Conservation. - 2011. - Vol. 20, Is. 2. - P415-428, DOI 10.1007/s10531-010-9958-y . - ISSN 0960-3115
Аннотация: Investigating the tolerance of plant reproductive systems to environmental changes has become a research priority under current climate change scenarios. Successful plant conservation requires knowledge of plant reproductive biology, particularly the meiotic characteristics of planted species. Meiosis, as part of microsporogenesis, is a critical plant developmental stage controlling future pollen quality. Meiosis in a Siberian fir (Abies sibirica) plantation, established in the Forest Arboretum of the Sukachev Institute, Russia, was studied from 2002 to 2004. The microsporogenesis pattern found for the Siberian fir appeared to be largely similar to that exhibited by other conifer species. Meiosis in the Siberian fir has the following characteristics: asynchrony, rapid progression of telophases I and II, and parallel and linear spindle arrangements at different meiosis II stages. General and specific meiosis irregularities were recorded at each stage. Some specific features of meiosis and the specific development of some irregularities were revealed. Pollen development analysis showed that irregular pollen grains made up less than 1% of all grains. The specific features of meiosis identified in fir trees growing in the Arboretum indicated low resistance of male reproductive structures to climatic changes and might account for high fir pollen sterility in this new environment. В© 2010 Springer Science+Business Media B.V.

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Держатели документа:
V. N. Sukachev Institute of Forest, Academgorodok, 50-28, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Bazhina, E.V.; Kvitko, O.V.; Muratova, E.N.

    Cytogenetic studies on submerged plants from the Yenisei River area in the zone of radioactive contamination
[Text] / E. N. Muratova [et al.] // Biol. Bull. - 2014. - Vol. 41, Is. 5. - P461-467, DOI 10.1134/S1062359014050094. - Cited References: 21. - This work was supported by integration projects of the Siberian Branch of the Russian Academy of Sciences nos. 1, 30, 96. . - ISSN 1062-3590. - ISSN 1026-3470
РУБ Biology

Аннотация: Cytogenetic studies on three species of submerged plants from different parts of the Yenisei River area subjected to radioactive impact of the Krasnoyarsk Mining-and-Chemical Plant and the Electrochemical Factory have been conducted. A high level of irregularities in ana-telophase and metaphase of mitoses has been revealed in test samples compared to the control: agglutination and fragmentation of chromosomes, lagging chromosomes, bridges, fragments, misdivisions, and others. The nature of the disorders indicates that they are related in part to the direct damage to the chromosome structure and in part to damage to the spindle.

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Держатели документа:
[Muratova, E. N.
Goryachkina, O. V.
Pimenov, A. V.
Sedelnikova, T. S.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
[Kornilova, M. G.] Krasnoyarsk State Agr Univ, Krasnoyarsk 660049, Russia
[Bolsunovsky, A. Ya.] Russian Acad Sci, Siberian Branch, Inst Biophys, Krasnoyarsk 660036, Russia
ИЛ СО РАН
ИБФ СО РАН

Доп.точки доступа:
Muratova, E.N.; Goryachkina, O.V.; Kornilova, M.G.; Pimenov, A.V.; Sedelnikova, T.S.; Bolsunovsky, A.Y.; Siberian Branch of the Russian Academy of Sciences [30, 96]

    Meiosis during Microsporogenesis in Siberian Spruce (Picea obovata Ledeb.) in the South of Central Siberia
/ E. V. Bazhina, M. I. Cedaeva, E. N. Muratova // Russ. J. Dev. Biol. - 2019. - Vol. 50, Is. 3. - P113-123, DOI 10.1134/S1062360419030020. - Cited References:61. - The work was supported by the budget project of Sukachev Institute of Forest, Federal Research Center Krasnoyarsk Science Center (Siberian Branch, Russian Academy of Sciences), project no. 0356-20160301, and the Russian Foundation for Basic Research of Belarus, project no. 18-54-00010. . - ISSN 1062-3604. - ISSN 1608-3326
РУБ Developmental Biology
Рубрики:
POLLEN MOTHER CELLS
   ABIES-SIBIRICA LEDEB.

   PINUS-SYLVESTRIS

Кл.слова (ненормированные):
Siberian spruce -- microsporogenesis -- meiosis -- chromosomes -- meiotic -- irregularities

Аннотация: The results of meiosis studies during microsporogenesis in Siberian spruce (Picea obovata Ledeb.) in the forest ecosystems of the south of Central Siberia are presented. Meiosis features and different types of irregularities were detected. The features of male organ development show a high level of the Siberian spruce's adaptation to the extreme climate of Siberia.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Fed Res Ctr, Krasnoyarsk Sci Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Bazhina, E., V; Cedaeva, M., I; Muratova, E. N.; Sukachev Institute of Forest, Federal Research Center Krasnoyarsk Science Center (Siberian Branch, Russian Academy of Sciences) [0356-20160301]; Russian Foundation for Basic Research of Belarus [18-54-00010]

    Peculiarities of meiosis at microsporogenesis in picea obovata (Pinaceae) under introduction
/ E. V. Bazhina, M. I. Sedaeva, E. N. Muratova, E. A. Bazhina // Botanicheskii Zhu. - 2020. - Vol. 105, Is. 12. - С. 1207-1220, DOI 10.31857/S000681362012011X . - ISSN 0006-8136

Кл.слова (ненормированные):
Chromosomes -- Introduction -- Meiosis -- Meiotic irregularities -- Microsporogenesis -- Picea obovata Ledeb

Аннотация: Investigating the tolerance of plant reproductive systems to environmental changes has become a research pri-ority under current climate change scenarios. The results of the investigations of meiosis at microsporogenesis in Siberian spruce (Picea obovata Ledeb.) under introduction are presented. The meiosis in the Siberian spruce plantation established in the Forest Arboretum of the Sukachev Institute, Russia, was studied in 2018. The microsporogenesis pattern found for the Siberian spruce appeared to be largely similar to that exhibited by other conifer species. The meiosis in the Siberian spruce has the following characteristics: identification of all stages of prophases I; asynchrony in different trees as well as in different meiocytes of the same tree and the same microsporangium; parallel and perpendicular as well as linear spindle arrangements at different meiosis II; irregularities of development at different stages. Some specific meiosis irregularities have never been revealed in natural populations of Central Siberia. The investigations of plant ontogenesis in new conditions of growth show the response of the plants on climate change. The specific features of meiosis identified in the spruce trees growing ex situ indicated high resistance of male reproductive structures to climatic changes. © 2020, Komarov Botanical Institute. All rights reserved.

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Держатели документа:
V.N. Sukachev Institute of Forest, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok, 50/28, Krasnoyarsk, 660036, Russian Federation
Moscow City University, Vtoroy Selskohoziajstvenny proezd, 4, Moscow, 129226, Russian Federation

Доп.точки доступа:
Bazhina, E. V.; Sedaeva, M. I.; Muratova, E. N.; Bazhina, E. A.

    Кариологические и цитогенетические исследования хвойных в экстремальных условиях произрастания
[Текст] : научное издание / Е. Н. Муратова, Т. С. Седельникова, О. В. Горячкина, А. В. Пименов // сибирский экологический журнал. - 2023. - Т. 30, № 5. - С. 591-602, DOI 10.15372/SEJ20230502 . - ISSN 0869-8619
ГРНТИ

Аннотация: Обобщены результаты кариологических и цитогенетических исследований в популяциях видов хвойных семейств Pinaceae и Cupressaceae из экстремальных условий произрастания. У хвойных, произрастающих у южной и северной границ ареалов на экологическом пределе распространения, в антропогенно нарушенных экосистемах, в условиях интродукции, выявлена хромосомная изменчивость, обнаружены геномные и хромосомные мутации различного типа. Отмечены высокая частота изменений числа хромосом (миксоплоидия, анеуплоидия и полиплоидия) и их морфологии. Найдены различные типы хромосомных аномалий (кольцевые и полицентрические хромосомы, фрагменты, множественные хромосомные аномалии), агглютинация хромосом, появление В-хромосом, нарушения митоза и мейоза. С использованием классических методов и флуоресцентной гибридизации in situ (FISH) проведены исследования полиморфизма нуклеолярных районов хромосом, выявлены особенности локусов генов 5S и 45S рибосомной РНК.
Results of karyological and cytogenetical studies in populations of conifer species of Pinaceae and Cupressaceae families from extreme conditions are summarized. In conifers growing in southern and northern borders of areas, on ecological limits of distribution, in anthropogenically disturbed ecosystems, at the introduction, chromosome variability is revealed. A high frequency of changes in the number of chromosomes (mixoploidy, aneuploidy and polyploidy) and their morphology were noted. Different types of chromosome anomalies (ring and polycentric chromosomes, fragments, multiple chromosome irregularities), B-chromosomes occurrence, irregularities of mitosis and meiosis are found. Using classical methods and fluorescent in situ hybridization (FISH), studies of the polymorphism of the nucleolar regions of chromosomes were carried out, and features of the loci of the 5S and 45S ribosomal RNA genes were revealed.

РИНЦ

Держатели документа:
ИЛ СО РАН : 660036, Красноярск, Академгородок, 50, стр. 28

Доп.точки доступа:
Седельникова, Тамара Станиславовна; Sedel'nikova, Tamara Stanislavovna; Горячкина, Ольга Викторовна; Пименов, Александр Владимирович; Pimenov, Alexandr Vladimirovich; Muratova, Elena Nikolayevna