Results 1 to 10 of about 55,531 (223)

Centromeres in budding yeasts are conserved in chromosomal location but not in structure. [PDF]

open access: yesPLoS Genetics
The budding yeast Saccharomyces cerevisiae has 'point' centromeres, which are much smaller and simpler than centromeres of most other eukaryotes and have a defined DNA sequence.
Conor Hession   +3 more
doaj   +3 more sources

Kinetochore mutations and histone phosphorylation pattern changes accompany holo- and macro-monocentromere evolution [PDF]

open access: yesNature Communications
Centromeres are essential for kinetochore assembly and spindle attachment. While chromosomes of most species are monocentric with a single centromere, a minority exhibit holocentricity, with a centromere along the chromatid length.
Yi-Tzu Kuo   +12 more
doaj   +2 more sources

Only the Rye Derived Part of the 1BL/1RS Hybrid Centromere Incorporates CENH3 of Wheat

open access: yesFrontiers in Plant Science, 2021
The precise assembly of the kinetochore complex at the centromere is epigenetically determined by substituting histone H3 with the centromere-specific histone H3 variant CENH3 in centromeric nucleosomes.
Raheleh Karimi-Ashtiyani   +3 more
doaj   +1 more source

Centromeres [PDF]

open access: yesCurrent Biology, 2016
Centromeres, chromosomal regions that become physically linked to the spindle during cell division, ensure equal division of genetic material between daughter cells. They are ubiquitous and essential in eukaryotic life. In this primer, we ask the questions 'What defines a functional centromere?' and 'What do all centromeres have in common?' To address ...
Lisa E, Kursel, Harmit S, Malik
openaire   +2 more sources

The cotton centromere contains a Ty3-gypsy-like LTR retroelement. [PDF]

open access: yesPLoS ONE, 2012
The centromere is a repeat-rich structure essential for chromosome segregation; with the long-term aim of understanding centromere structure and function, we set out to identify cotton centromere sequences. To isolate centromere-associated sequences from
Song Luo   +7 more
doaj   +1 more source

EWSR1 maintains centromere identity

open access: yesCell Reports, 2023
Summary: The centromere is essential for ensuring high-fidelity transmission of chromosomes. CENP-A, the centromeric histone H3 variant, is thought to be the epigenetic mark of centromere identity.
Risa Kitagawa   +4 more
doaj   +1 more source

Variation in the CENP-A sequence association landscape across diverse inbred mouse strains

open access: yesCell Reports, 2023
Summary: Centromeres are crucial for chromosome segregation, but their underlying sequences evolve rapidly, imposing strong selection for compensatory changes in centromere-associated kinetochore proteins to assure the stability of genome transmission ...
Uma P. Arora   +2 more
doaj   +1 more source

A role for the CAL1-partner Modulo in centromere integrity and accurate chromosome segregation in Drosophila. [PDF]

open access: yesPLoS ONE, 2012
The relationship between the nucleolus and the centromere, although documented, remains one of the most elusive aspects of centromere assembly and maintenance.
Chin-Chi Chen   +3 more
doaj   +1 more source

Gross Chromosomal Rearrangement at Centromeres

open access: yesBiomolecules, 2023
Centromeres play essential roles in the faithful segregation of chromosomes. CENP-A, the centromere-specific histone H3 variant, and heterochromatin characterized by di- or tri-methylation of histone H3 9th lysine (H3K9) are the hallmarks of centromere ...
Ran Xu, Ziyi Pan, Takuro Nakagawa
doaj   +1 more source

Centromere Repositioning [PDF]

open access: yesGenome Research, 1999
Primate pericentromeric regions recently have been shown to exhibit extraordinary evolutionary plasticity. In this paper we report an additional peculiar feature of these regions that we discovered while analyzing, by FISH, the evolutionary conservation of primate phylogenetic chromosome IX.
Montefalcone G   +3 more
openaire   +2 more sources

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