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[Interzonal microtubules and meiotic restitution in the dycots]
N V Shamina1, N Ia Vaĭsman, N V Dorogova
1Institute of Cytology and Genetics, Siberian Branch of RAS, Novosibirsk.
Tsitologiia
|June 8, 2001
Abstract:
Dynamics of the microtubule cytoskeleton at mobile stages of female meiosis in the dycots was studied. A new stage of MT rearrangement was revealed referred to as centrifugal movement of interzone MTs at telophase 1. A disruption of this process leads to the displacement of daughter nuclei to the equatorial region and a common (fused) spindle formation. This is the cause of dyad (instead of tetrads) formation in mutant ps of Beta vulgaris.