Holocentric Chromosomes Probably Do Not Prevent Centromere Drive in Cyperaceae [PDF]
Frontiers 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 +4 more
doaj +2 more sources
Holocentric chromosomes. [PDF]
PLoS 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 +2 more sources
Mitotic Spindle Attachment to the Holocentric Chromosomes of Cuscuta europaea Does Not Correlate With the Distribution of CENH3 Chromatin [PDF]
Frontiers 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 +7 more
doaj +2 more sources
Kinetochore component function in C. elegans oocytes revealed by 4D tracking of holocentric chromosomes [PDF]
Nature 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
Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae) [PDF]
Genetics 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
Differential Spreading of Microsatellites in Holocentric Chromosomes of Chagas Disease Vectors: Genomic and Evolutionary Implications [PDF]
Insects, 2023 This study focused on analyzing the distribution of microsatellites in holocentric chromosomes of the Triatominae subfamily, insect vectors of Chagas disease.
Francisco Panzera +5 more
doaj +2 more sources
Distribution of heterochromatin and rDNA on the holocentric chromosomes of the aphids Dysaphis plantaginea and Melanaphis pyraria (Hemiptera: Aphididae) [PDF]
European 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 ...
Angela CRINITI +5 more
doaj +2 more sources
Evidence for centromere drive in the holocentric chromosomes of Caenorhabditis. [PDF]
PLoS 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 +2 more sources
The Art of Chromosome Capture: Kinetochore Structures Across Evolution. [PDF]
Structural DynamicsKinetochores are essential macromolecular machines that anchor chromosomes to the mitotic spindle, ensuring accurate chromosome segregation during cell division.
Stanislau Yatskevich
doaj +2 more sources
Heterochromatin base pair composition and diversification in holocentric chromosomes of kissing bugs (Hemiptera, Reduviidae) [PDF]
Memorias do Instituto Oswaldo Cruz, 2016 The subfamily Triatominae (Hemiptera, Reduviidae) includes 150 species of blood-sucking insects, vectors of Chagas disease or American trypanosomiasis. Karyotypic information reveals a striking stability in the number of autosomes.
Vanessa Bellini Bardella +4 more
doaj +2 more sources