Results 1 to 10 of about 2,412 (170)

Holocentric Chromosomes Probably Do Not Prevent Centromere Drive in Cyperaceae [PDF]

open access: yesFrontiers in Plant Science, 2021
Centromere drive model describes an evolutionary process initiated by centromeric repeats expansion, which leads to the recruitment of excess kinetochore proteins and consequent preferential segregation of an expanded centromere to the egg during female ...
Marie Krátká   +2 more
exaly   +7 more sources

Holocentric chromosomes. [PDF]

open access: yesPLoS Genetics, 2020
Holocentric chromosomes possess multiple kinetochores along their length rather than the single centromere typical of other chromosomes [1]. They have been described for the first time in cytogenetic experiments dating from 1935 and, since this first ...
Mauro Mandrioli, Gian Carlo Manicardi
doaj   +6 more sources

Mitotic Spindle Attachment to the Holocentric Chromosomes of Cuscuta europaea Does Not Correlate With the Distribution of CENH3 Chromatin [PDF]

open access: yesFrontiers in Plant Science, 2020
The centromere is the region on a chromosome where the kinetochore assembles and spindle microtubules attach during mitosis and meiosis. In the vast majority of eukaryotes, the centromere position is determined epigenetically by the presence of the ...
Ludmila Oliveira   +2 more
exaly   +4 more sources

Evidence for centromere drive in the holocentric chromosomes of Caenorhabditis. [PDF]

open access: yesPLoS ONE, 2012
In monocentric organisms with asymmetric meiosis, the kinetochore proteins, such as CENH3 and CENP-C, evolve adaptively to counterbalance the deleterious effects of centromere drive, which is caused by the expansion of centromeric satellite repeats.
František Zedek, Petr Bureš
doaj   +5 more sources

Distribution of heterochromatin and rDNA on the holocentric chromosomes of the aphids Dysaphis plantaginea and Melanaphis pyraria (Hemiptera: Aphididae) [PDF]

open access: yesEuropean Journal of Entomology, 2009
The structure of the holocentric chromosomes of the rosy apple aphid, Dysaphis plantaginea (2n = 12), and pear-grass aphid, Melanaphis pyraria (2n = 8), was studied using C-banding, NOR, Giemsa and fluorochrome staining, and fluorescent in situ ...
Stefano Cassanelli   +2 more
exaly   +4 more sources

Differential Spreading of Microsatellites in Holocentric Chromosomes of Chagas Disease Vectors: Genomic and Evolutionary Implications [PDF]

open access: yesInsects, 2023
This study focused on analyzing the distribution of microsatellites in holocentric chromosomes of the Triatominae subfamily, insect vectors of Chagas disease.
Francisco Panzera   +2 more
exaly   +4 more sources

Correction: Evidence for Centromere Drive in the Holocentric Chromosomes of Caenorhabditis. [PDF]

open access: yesPLoS ONE, 2016
There are errors in the Supporting Information file S1 Text. Please see the corrected S1 Text here.
František Zedek, Petr Bureš
doaj   +4 more sources

Kinetochore component function in C. elegans oocytes revealed by 4D tracking of holocentric chromosomes [PDF]

open access: yesNature Communications, 2023
During cell division, chromosome congression to the spindle center, their orientation along the spindle long axis and alignment at the metaphase plate depend on interactions between spindle microtubules and kinetochores, and are pre-requisite for ...
Laras Pitayu-Nugroho   +7 more
doaj   +2 more sources

Heterochromatin differentiation in holocentric chromosomes of Rhynchospora (Cyperaceae) [PDF]

open access: yesGenetics and Molecular Biology, 2000
Holocentric chromosomes of six species of Rhynchospora, R. ciliata, R. pubera, R. riparia and R. barbata (2n = 10), R. nervosa (2n = 30) and R. globosa (2n = 36), were stained with CMA3/DAPI fluorochromes or treated with C-banding and sequentially ...
André L.L. Vanzela, Marcelo Guerra
doaj   +4 more sources

Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae) [PDF]

open access: yesGenetics and Molecular Biology, 2006
Orcein staining of spermatocytes was used to study the meiotic behavior of holocentric chromosomes in three member of the genus Antiteuchus (commonly known as stink bugs). We describe and illustrate the karyotype of Antiteuchus mixtus, A. sepulcralis and
Cecilia Lanzone, Maria José de Souza
doaj   +4 more sources

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