Cytomixis in the cereal (Gramineae) microsporogenesis

The specific features in behavior of the nuclei and chromatin migrating through cytomictic channels as well as in formation of micronuclei in the cereal microsporogenesis have been studied. Immunofluorescence microscopy has allowed for demonstration that the tubulin cytoskeleton does not play a sign...

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Bibliographic Details
Published in:Protoplasma 2016-03, Vol.253 (2), p.291-298
Main Authors: Sidorchuk, Yuri V, Anna A. Novikovskaya, Elena V. Deineko
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Cell Biology
Cell Communication
Cell Nucleus - physiology
chromatin
fluorescence microscopy
Gametogenesis, Plant
genome
Life Sciences
Magnoliopsida
microfilaments
microsporogenesis
Original Article
Plant Sciences
Poaceae
polyploidy
Triticum - cytology
Triticum - physiology
tubulin
Zoology
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Summary:The specific features in behavior of the nuclei and chromatin migrating through cytomictic channels as well as in formation of micronuclei in the cereal microsporogenesis have been studied. Immunofluorescence microscopy has allowed for demonstration that the tubulin cytoskeleton does not play a significant role in the intercellular migration of nuclei. Potential involvement of the actin cytoskeleton and SUN–KASH linker complexes in cytomixis is discussed. Comparative analysis of the published and own data suggests that the cytological patterns of cytomixis in monocots and dicots are conserved. As has been shown, each higher ploidy level in the polyploid series of the family Gramineae is accompanied by an increase in the rate of cytomixis independently of individual species. The results confirm the assumption on a correlation between the rate of cytomixis, ploidy level, and genome balance.
ISSN:0033-183X
1615-6102
DOI:10.1007/s00709-015-0807-4