: 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
Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН
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Meiosis at microsporogenesis in Siberian fir (Abies sibirica Ledeb.) in natural populations and in an arboretum
A karyological study of swamp and dry valley populations of Siberian fir (Abies sibirica Ledeb.)
[Text] / T. S. Sedel'nikova, A. V. Pimenov // Biol. Bull. - 2005. - Vol. 32, Is. 1. - P16-21, DOI 10.1007/s10525-005-0004-7. - Cited References: 23
. - 6. - ISSN 1062-3590
РУБ Biology
Аннотация: The karyological data on populations of Siberian fir (Abies sibirica Ledeb.) growing in lowland swamp and dry valleys are given. The diploid set of both populations included 24 chromosomes (2n = 24). Polykaryogram analysis revealed seven pairs of metacentric and five pairs of submetacentric chromosomes. The revealed differences between the populations included the absolute length of chromosomes, number of nucleolar organizer regions, and number of nucleoli. Changed chromosome numbers (mixoploidy and aneuploidy) as well as chromosomal aberrations were recorded. For the first time, mitosis was studied in this species and anaphase/telophase aberrations were revealed. The population of Siberian fir growing under extreme conditions of lowland swamp featured the widest range of mutations.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Sedel'nikova, T.S.; Pimenov, A.V.
Аннотация: The karyological data on populations of Siberian fir (Abies sibirica Ledeb.) growing in lowland swamp and dry valleys are given. The diploid set of both populations included 24 chromosomes (2n = 24). Polykaryogram analysis revealed seven pairs of metacentric and five pairs of submetacentric chromosomes. The revealed differences between the populations included the absolute length of chromosomes, number of nucleolar organizer regions, and number of nucleoli. Changed chromosome numbers (mixoploidy and aneuploidy) as well as chromosomal aberrations were recorded. For the first time, mitosis was studied in this species and anaphase/telophase aberrations were revealed. The population of Siberian fir growing under extreme conditions of lowland swamp featured the widest range of mutations.
Полный текст,
WOS,
Scopus
Держатели документа:
Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Sedel'nikova, T.S.; Pimenov, A.V.
Karyological characteristics of Siberian fir (Abies sibirica Ledeb.) in Central Siberia
/ O. V. Kvitko, E. N. Muratova // Cell and Tissue Biology. - 2010. - Vol. 4, Is. 2. - P215-222, DOI 10.1134/S1990519X10020124
. - ISSN 1990-519X
Кл.слова (ненормированные):
Karyotype -- Mixoploidy -- Nucleoli -- Polyploidy -- Secondary constrictions -- Siberian fir -- Somatic reduction of chromosomes -- Abies -- Abies sibirica
Аннотация: Data are presented on the karyotype structure of the Siberian fir (Abies sibirica Ledeb.) from five populations of the Central Siberia. The chromosome set (2n = 24) contains seven pairs of metacentric (I-VII), four pairs of submetacentric (VIII and X-XII), and one pair of intercentric (IX) chromosomes. The morphometric parameters of the identified chromosome groups had close values in the studied populations. The variation coefficients of chromosomal parameters of the Siberian fir correspond to very low and low variability. The intraspecific chromosome polymorphism of the Siberian fir is connected mainly to variations in the number and peculiarities of the nucleolar organizing regions of chromosomes. In the territory with technogenic loading, a wide spectrum of genomic mutations of the mixoploidy type was observed in the seed off-spring of the Siberian fir; triploid seedlings, as well as rare cases of somatic reduction of chromosomes, were revealed. В© 2010 Pleiades Publishing, Ltd.
Scopus,
Полный текст
Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Kvitko, O.V.; Muratova, E.N.
Кл.слова (ненормированные):
Karyotype -- Mixoploidy -- Nucleoli -- Polyploidy -- Secondary constrictions -- Siberian fir -- Somatic reduction of chromosomes -- Abies -- Abies sibirica
Аннотация: Data are presented on the karyotype structure of the Siberian fir (Abies sibirica Ledeb.) from five populations of the Central Siberia. The chromosome set (2n = 24) contains seven pairs of metacentric (I-VII), four pairs of submetacentric (VIII and X-XII), and one pair of intercentric (IX) chromosomes. The morphometric parameters of the identified chromosome groups had close values in the studied populations. The variation coefficients of chromosomal parameters of the Siberian fir correspond to very low and low variability. The intraspecific chromosome polymorphism of the Siberian fir is connected mainly to variations in the number and peculiarities of the nucleolar organizing regions of chromosomes. In the territory with technogenic loading, a wide spectrum of genomic mutations of the mixoploidy type was observed in the seed off-spring of the Siberian fir; triploid seedlings, as well as rare cases of somatic reduction of chromosomes, were revealed. В© 2010 Pleiades Publishing, Ltd.
Scopus,
Полный текст
Держатели документа:
V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Kvitko, O.V.; Muratova, E.N.
KARYOLOGICAL INVESTIGATION OF BOG AND UPLAND POPULATIONS OF COMMON PINE (PINUS-SYLVESTRIS L)
[Text] / E. N. MURATOVA, T. S. SEDELNIKOVA // Russ. J. Ecol. - 1993. - Vol. 24, Is. 6. - P378-385. - Cited References: 0
. - 8. - ISSN 1067-4136
РУБ Ecology
Аннотация: The authors studied karyotypes of common pine from three ecologically different habitats (raised bog, drained lowland bog, upland). It was established that the diploid set of all of the studied populations contains 24 chromosomes. When their karyotypes were compared, differences were noted in the total length of the chromosome set, and also in the number, localization, and frequency of occurrence of secondary constrictions and nucleoli. In the pine population on a raised bog, two pairs of chromosomes with four secondary constrictions were found for the first time. Chromosome mutations were discovered in the seed progeny of the investigated populations. The peculiarities that were revealed may be connected with different environmental conditions.
Доп.точки доступа:
MURATOVA, E.N.; SEDELNIKOVA, T.S.
Аннотация: The authors studied karyotypes of common pine from three ecologically different habitats (raised bog, drained lowland bog, upland). It was established that the diploid set of all of the studied populations contains 24 chromosomes. When their karyotypes were compared, differences were noted in the total length of the chromosome set, and also in the number, localization, and frequency of occurrence of secondary constrictions and nucleoli. In the pine population on a raised bog, two pairs of chromosomes with four secondary constrictions were found for the first time. Chromosome mutations were discovered in the seed progeny of the investigated populations. The peculiarities that were revealed may be connected with different environmental conditions.
Доп.точки доступа:
MURATOVA, E.N.; SEDELNIKOVA, T.S.