Divergence of mitotic strategies in fission yeasts.

Nucleus
Ying GuSnezhana Oliferenko

Abstract

The aim of mitosis is to produce two daughter nuclei, each containing a chromosome complement identical to that of the mother nucleus. This can be accomplished through a variety of strategies, with "open" and "closed" modes of mitosis positioned at the opposite ends of the spectrum and a range of intermediate patterns in between. In the "closed" mitosis, the nuclear envelope remains intact throughout the nuclear division. In the "open" division type, the envelope of the original nucleus breaks down early in mitosis and reassembles around the segregated daughter genomes. In any case, the nuclear membrane has to remodel to accommodate the mitotic spindle assembly, chromosome segregation and formation of the daughter nuclei. We have recently shown that within the fission yeast clade, the mitotic control of the nuclear surface area may determine the choice between the nuclear envelope breakdown and a fully "closed" division. Here we discuss our data and argue that comparative cell biology studies using two fission yeast species, Schizosaccharomyces pombe and Schizosaccharomyces japonicus, could provide unprecedented insights into physiology and evolution of mitosis.

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Citations

Feb 10, 2016·Current Biology : CB·Rupali Prasad, Yves Barral
Feb 13, 2016·Frontiers in Cell and Developmental Biology·Haruhiko AsakawaTokuko Haraguchi
Jan 18, 2016·Current Biology : CB·Maria MakarovaSnezhana Oliferenko
Oct 29, 2014·BMC Biology·David A Baum, Buzz Baum
Apr 12, 2016·Current Opinion in Cell Biology·Maria Makarova, Snezhana Oliferenko
Oct 3, 2018·Yeast·Róbert Zach, Martin Převorovský
Jul 22, 2018·Journal of Cell Science·Snezhana Oliferenko
Jan 10, 2021·Current Opinion in Cell Biology·Gautam Dey, Buzz Baum

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Methods Mentioned

BETA
light microscopy
transmission electron microscopy

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