PECULIARITIES OF THE CYTOMIXIS IN THE POLLEN MOTHER CELLS OF TRANSGENIC TOBACCO PLANTS
(NICOTIANA TABACUM L.) WITH MUTANT PHENOTYPE
Yu. V. Sidorchuk, E. V. Deineko, V. K. Shumny
Institute of Cytology and Genetics, Siberian Branch of RAS, Novosibirsk;
e-mail: sidorch@bionet.nsc.ru
This paper represents the frequency characteristics and cytological analysis of cytomixis in the course of
male meiosis in transgenic tobacco plants (Nicotiana tabacum L.) with altered flower morphology and male sterility.
The influence of cytomixis on qualitative composition of the meiotic products is shoron (cytoplasts and
polyads formation). It was established that doubling of chromosomes number increased cytomixis frequency in
the investigated plants.
Key words: cytomixis, pollen mother cells, meiosis
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