Results 11 to 20 of about 59,497 (285)

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

Centromere size scales with genome size across Eukaryotes

open access: yesScientific Reports, 2021
Previous studies on grass species suggested that the total centromere size (sum of all centromere sizes in a cell) may be determined by the genome size, possibly because stable scaling is important for proper cell division. However, it is unclear whether
Klára Plačková   +2 more
doaj   +1 more source

A Taz1- and Microtubule-Dependent Regulatory Relationship between Telomere and Centromere Positions in Bouquet Formation Secures Proper Meiotic Divisions. [PDF]

open access: yesPLoS Genetics, 2016
During meiotic prophase, telomeres cluster, forming the bouquet chromosome arrangement, and facilitate homologous chromosome pairing. In fission yeast, bouquet formation requires switching of telomere and centromere positions.
Kazuhiro Katsumata   +8 more
doaj   +1 more source

Chromosome Y centromere array deletion leads to impaired centromere function. [PDF]

open access: yesPLoS ONE, 2014
The centromere is an essential chromosomal structure that is required for the faithful distribution of replicated chromosomes to daughter cells. Defects in the centromere can compromise the stability of chromosomes resulting in segregation errors.
Alison N Graham, Paul Kalitsis
doaj   +1 more source

Dynamic epigenetic states of maize centromeres

open access: yesFrontiers in Plant Science, 2015
The centromere is a specialized chromosomal region identified as the major constriction, upon which the kinetochore complex is formed, ensuring accurate chromosome orientation and segregation during cell division.
Yalin eLiu   +5 more
doaj   +1 more source

Holocentromeres can consist of merely a few megabase-sized satellite arrays

open access: yesNature Communications, 2023
The centromere is the chromosome region where microtubules attach during cell division. In contrast to monocentric chromosomes with one centromere, holocentric species usually distribute hundreds of centromere units along the entire chromatid.
Yi-Tzu Kuo   +17 more
doaj   +1 more source

Stretching the rules: monocentric chromosomes with multiple centromere domains. [PDF]

open access: yesPLoS Genetics, 2012
The centromere is a functional chromosome domain that is essential for faithful chromosome segregation during cell division and that can be reliably identified by the presence of the centromere-specific histone H3 variant CenH3.
Pavel Neumann   +8 more
doaj   +1 more source

Recent insights into mechanisms preventing ectopic centromere formation

open access: yesOpen Biology, 2021
The centromere is a specialized chromosomal structure essential for chromosome segregation. Centromere dysfunction leads to chromosome segregation errors and genome instability.
Qianhua Dong   +3 more
doaj   +1 more source

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