NDLI: Centromeres and kinetochores of Brassicaceae

Content Provider	Springer Nature Link
Author	Lermontova, Inna Sandmann, Michael Demidov, Dmitri
Copyright Year	2014
Abstract	The centromere—the primary constriction of monocentric chromosomes—is essential for correct segregation of chromosomes during mitosis and meiosis. Centromeric DNA varies between different organisms in sequence composition and extension. The main components of centromeric and pericentromeric DNA of Brassicaceae species are centromeric satellite repeats. Centromeric DNA initiates assembly of the kinetochore, the large protein complex where the spindle fibers attach during nuclear division to pull sister chromatids apart. Kinetochore assembly is initiated by incorporation of the centromeric histone H3 cenH3 into centromeric nucleosomes. The spindle assembly checkpoint acts during mitosis and meiosis at centromeres and maintains genome stability by preventing chromosome segregation before all kinetochores are correctly attached to microtubules. The function of the spindle assembly checkpoint in plants is still poorly understood. Here, we review recent advances of studies on structure and functional importance of centromeric DNA of Brassicaceae, assembly and function of cenH3 in Arabidopsis thaliana and characterization of core SAC proteins of A. thaliana in comparison with non-plant homologues.
Starting Page	135
Ending Page	152
Page Count	18
File Format	PDF
ISSN	09673849
Journal	Chromosome Research
Volume Number	22
Issue Number	2
e-ISSN	15736849
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-05-07
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Centromere Kinetochore cenH3 Spindle assembly checkpoint Cell Biology Human Genetics Animal Genetics and Genomics Plant Genetics & Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics

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