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Centromere divergence and allopolyploidy reshape carnivorous sundew genomes

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Albert V   +32 more
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Plant centromeres

Current Opinion in Plant Biology, 2017
Plant centromeres, which are determined epigenetically by centromeric histone 3 (CENH3) have revealed surprising structural diversity, ranging from the canonical monocentric seen in vertebrates, to polycentric, and holocentric. Normally stable, centromeres can change position over evolutionary times or upon genomic stress, such as when chromosomes are ...
Luca, Comai   +2 more
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Centromere proteins

Chromosoma, 1989
Human anti-centromere sera from scleroderma patients were used to detect centromere antigens of mouse fibroblast cells. An Mr = 59,000 centromere protein was localized exclusively on mitotic chromosomes. The association of this protein with the mitotic chromosomes proved to be DNase I sensitive.
G, Hadlaczky   +3 more
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Plant Centromeres

2008
Plant centromeres are generally composed of tandem arrays of simple repeats that are typical of a particular species, but that evolve rapidly. Centromere specific retroelements are also present. These arrays associate with a centromere specific variant of histone H3 that anchors the site of the kinetochore.
J C, Lamb, W, Yu, F, Han, J A, Birchler
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Centromerization

Trends in Cell Biology, 2000
Centromere formation is a complex process that involves the packaging of DNA into a centromere-unique chromatin, chemical modification and the seeding of kinetochore and associated proteins. The early steps in this process, in which a chromosomal region is marked for centromerization (that is, to become resolutely committed to centromere formation ...
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Centromeric retrotransposons and centromere function

Current Opinion in Genetics & Development, 2018
The centromeric DNA of most multicellular eukaryotes consists of tandem repeats (TR) that bind centromere-specific proteins and act as a substrate for the efficient repair of frequent double-stranded DNA breaks. Some retrotransposons target active centromeres during integration with such specificity that they can be used to deduce current and historic ...
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Yeast centromeres

Yeast, 1987
Significant progress has been made toward understanding the roles played by conserved centromere DNA sequences in both mitotic and meiotic chromosome segregation. We are just beginning to formulate a picture of what a yeast kinetochore actually looks like and what components other than CEN DNA are necessary for function.
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Centromere dynamics

Current Opinion in Genetics & Development, 2007
At the foundation of all eukaryotic kinetochores is a unique histone variant, known as CenH3 (centromere histone H3). We are starting to identify the histone chaperones responsible for CenH3 deposition at centromere DNA, and the mechanisms that restrict CenH3 from chromosome arms.
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