Intra- and intertissular cytomictic interactions in the microsporogenesis of mono- and dicotyledonous plants
- Authors: Kravets E.A.1, Sidorchuk Y.V.2, Horyunova I.I.1, Plohovskaya S.H.1, Mursalimov S.R.2, Deineko E.V.2, Yemets A.I.1, Blume Y.B.1
-
Affiliations:
- Institute of Food Biotechnology and Genomics
- Institute of Cytology and Genetics, Siberian Branch
- Issue: Vol 50, No 5 (2016)
- Pages: 267-277
- Section: Article
- URL: https://journals.rcsi.science/0095-4527/article/view/173427
- DOI: https://doi.org/10.3103/S0095452716050054
- ID: 173427
Cite item
Abstract
Comparative cytological analysis of intra- and intertissular cytomictic interactions in the microsporogenesis of mono- and dicotyledonous plants has been performed for two cellular systems: the microsporocytes and the tapetum. Cytomixis was shown to be more common for intratissular interactions, and cytomixis in the tapetum exhibited taxon-specific features, both structural and temporal. Nuclear migration in the microsporocytes mostly occurred during the zygotene–pachytene and exhibited certain synchrony with cytomixis in the tapetum. Intertissular cytomictic interactions (between the tapetum and the microsporocytes) were detected only in monocotyledonous plant anthers. Intertissular interactions may reflect more intense competition for space between the tapetum and the microsporocytes during the differentiation of anther tissues. The polyploid nuclei of the tapetum and the syncytia are powerful acceptors that can compete with the microsporocytes and attract the chromatin during translocation of the latter. The absence of intertissular interactions in dicotyledonous plants may be indicative of a better balance between the processes of differentiation of somatic and generative tissues of the microsporangium as compared to monocotyledonous plants.
About the authors
E. A. Kravets
Institute of Food Biotechnology and Genomics
Author for correspondence.
Email: kravetshelen@gmail.com
Ukraine, Kyiv
Yu. V. Sidorchuk
Institute of Cytology and Genetics, Siberian Branch
Email: kravetshelen@gmail.com
Russian Federation, Novosibirsk
I. I. Horyunova
Institute of Food Biotechnology and Genomics
Email: kravetshelen@gmail.com
Ukraine, Kyiv
S. H. Plohovskaya
Institute of Food Biotechnology and Genomics
Email: kravetshelen@gmail.com
Ukraine, Kyiv
S. R. Mursalimov
Institute of Cytology and Genetics, Siberian Branch
Email: kravetshelen@gmail.com
Russian Federation, Novosibirsk
E. V. Deineko
Institute of Cytology and Genetics, Siberian Branch
Email: kravetshelen@gmail.com
Russian Federation, Novosibirsk
A. I. Yemets
Institute of Food Biotechnology and Genomics
Email: kravetshelen@gmail.com
Ukraine, Kyiv
Ya. B. Blume
Institute of Food Biotechnology and Genomics
Email: kravetshelen@gmail.com
Ukraine, Kyiv