DYNAMICS OF MICROTUBULAR CYTOSKELETON IN HIGHER PLANT MEIOSIS. V. LATE PRO METAPHASE. THE GENERAL SCHEME OF
ANASTRAL SPINDLE FORMATION
N. V. Shamina,1, * N. M. Kovaleva,1 N. V. Solov'eva,2
E. L Gordeeva 1
1 Institute of Cytology and Genetics, Siberian Branch, RASt Novosibirsk, and
2 Omsk State Agricultural University, Russia;
* e-mail: shamina@bionet.nsc.ru
By means of morphological analyses of meiotic abnormalities in pollen mother cells (PMCs) of cereal wide hybrids,
haploids and meiotic mutants, the processes involved in cytoskeleton cycle at late prometaphase (a substage of transition from
chaotic figure to bipolar spindle) were studied. A significance of the four processes of late prometaphase - axial orientation,
lateral association, consolidation and convergance of spindle fibers - is discussed.
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