DYNAMICS OF MICROTUBULAR CYTOSKELETON IN HIGHER PLANT MEIOSIS.
IV. MIDDLE PROMETAPHASE
N. V. Shamina,1 N. M. Kovaleva,1 N. V. Solov'eva 2
1 Institute of Cytology and Genetics, Siberian Branch of the RAS, Novosibirsk, and
2 Omsk State Agricultural University, Russia;
1 e-mail: shamina@bionet.nsc.ru
By means of morphological analyses of meiotic abnormalities in pollen mother cells of cereal distant hybrids,
processes of cytoskeleton cycle at the middle prometaphase (chaotic stage) were studied. It was shown that elements of the
bipolar spindle (central and opposite kinetochore fibres) are formed at the chaotic stage of meiotic prometaphase.
Key words: cytoskeleton, microtubules, meiosis, pollen mother cells, division spindle, higher
plants
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