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Migration of DNA-Containing Organelles between Tobacco Microsporocytes during Cytomixis
Russian Journal of Developmental Biology, 2018Ultrastructural analysis of intercellular migration of DNA-containing organelles (nuclei, mitochondria, and plastids) in tobacco microsporogenesis during cytomixis was conducted. It was demonstrated for the first time that the migrating part of the nucleus is covered with ribosomes and can contain the accumulation of nuclear pores.
S. Mursalimov +3 more
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Cytomixis in Agropyron cristatum
Genome, 1987An Agropyron cristatum plant (CB-9-41), crested wheat grass, and its vegetative clones have been identified that contain pollen mother cells that have a gain or a loss in chromatin (DNA). CB-9-41 was identified during the course of an experiment to determine the effectiveness of colchicine on the doubling of the chromosome complement.
Gary R. Bauchan +2 more
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How cytomixis can form unreduced gametes in tobacco
Plant Systematics and Evolution, 2015Cytomixis is migration of the nuclei between cells, widespread in various higher plant species. Most frequently, cytomixis takes place in microsporogenesis and is assumed to be a possible cause of unreduced gamete generation. In the present work the cytological mechanisms leading to a change in the cell chromosome number via cytomixis in tobacco ...
S. Mursalimov, Elena V. Deineko
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Cytomixis—a unique phenomenon in animal and plant
Protoplasma, 2013Cytomixis is reported to be a uniform phenomenon in the context of fertilization during spermatogenesis of animals and in some lower groups of plants where oogamous reproduction prevails. However, the phenomenon is versatile in flowering taxa as it lacks uniformity in occurrences, causes, formation of intercellular bridges, involvement of number of ...
Aninda, Mandal +7 more
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Chromosoma, 1976
Cytomixis is a spontaneous process occurring through the formation of cytoplasmic bridges between adjacent pollen mother cells. This phenomenon was observed in the pollen mother cells of 3 genotypes of Lolium perenne which had been subjected to directional selection for productivity of green material.
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Cytomixis is a spontaneous process occurring through the formation of cytoplasmic bridges between adjacent pollen mother cells. This phenomenon was observed in the pollen mother cells of 3 genotypes of Lolium perenne which had been subjected to directional selection for productivity of green material.
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Analysis of cytomixis in tobacco microsporocytes with confocal laser scanning microscopy
Protoplasma, 2016Confocal laser scanning microscopy for the first time is used to examine the structure of the tobacco microsporocytes involved in the intercellular migration of nuclei (cytomixis). As is observed, the cytomictic channels are distributed over the surface of tobacco microsporocytes in a non-random manner and their number depends on the meiotic stage ...
S. Mursalimov +2 more
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Proceedings / Indian Academy of Sciences, 1990
Cytomixis with actual transfer of chromatin material has been recorded in 6 woody species, from early prophase to telophase-II. It is more common at early stages of meiosis. Number of pollen mother cells involved vary from 2–8. As a consequence of chromatin migration both hypo and hyperploid meiocytes are seen inSerissa foetida, Symplocos chinensis ...
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Cytomixis with actual transfer of chromatin material has been recorded in 6 woody species, from early prophase to telophase-II. It is more common at early stages of meiosis. Number of pollen mother cells involved vary from 2–8. As a consequence of chromatin migration both hypo and hyperploid meiocytes are seen inSerissa foetida, Symplocos chinensis ...
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High frequency of cytomixis observed at zygotene in tetraploid Lippia alba
Plant Systematics and Evolution, 2015Lippia alba (Verbenaceae) is an aromatic shrub recently described as a new tropical polyploid species with five distinct chromosome numbers (2n = 30, 38, 45, 60, and 90) with 2n = 30, 45, and 60 being the most frequent ones. Cytomixis is a cellular process known as the migration of genetic material mainly between meiocytes through cytoplasmic ...
A. C. Reis, S. M. Sousa, L. F. Viccini
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Distribution of telomeres in the tobacco meiotic nuclei during cytomixis
Cell Biology International, 2015AbstractCytomixis is the migration of nuclei from one cell to another in higher plants, most frequently observable during microsporogenesis, which has a potential evolutionary significance. Currently, a major challenge is to label the chromatin migrating between cells to clarify its further fate.
S. Mursalimov +3 more
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An ultrastructural study of cytomixis in tobacco pollen mother cells
Protoplasma, 2011Intercellular chromatin migration (cytomixis) in the pollen mother cells of two tobacco (Nicotiana tabacum L.) lines was analyzed by electron microscopy during the first meiotic prophase. The maximal manifestation of cytomixis was observed in the pachytene.
Sergey R, Mursalimov, Elena V, Deineko
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