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
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
Flow cytometry may allow microscope-independent detection of holocentric chromosomes in plants. [PDF]
Sci Rep, 2016 AbstractTwo chromosomal structures, known as monocentric and holocentric chromosomes, have evolved in eukaryotes. Acentric fragments of monocentric chromosomes are unequally distributed to daughter cells and/or lost, while holocentric fragments are inherited normally.
Zedek F, Veselý P, Horová L, Bureš P.
europepmc +4 more sources
Repeat-based holocentromeres of the woodrush Luzula sylvatica reveal insights into the evolutionary transition to holocentricity [PDF]
Nature CommunicationsIn most studied eukaryotes, chromosomes are monocentric, with centromere activity confined to a single region. However, the rush family (Juncaceae) includes species with both monocentric (Juncus) and holocentric (Luzula) chromosomes, where centromere ...
Yennifer Mata-Sucre +11 more
doaj +2 more sources
Cryoimmobilized anther analysis reveals new ultrastructural insights into Rhynchospora (Cyperaceae) asymmetrical microsporogenesis [PDF]
Frontiers in Plant ScienceIntroductionThe Cyperaceae family is distinguished by holocentric chromosomes and a distinctive microsporogenesis process, which includes inverted meiosis, asymmetric tetrad formation, selective cell death, and the formation of pseudomonad pollen ...
Danilo M. Rocha +5 more
doaj +2 more sources
Cytogenetic and molecular analysis of the holocentric chromosomes of the potato aphid Macrosiphum euphorbiae (Thomas, 1878) [PDF]
Comparative Cytogenetics, 2011 Cytogenetic and molecular investigations on the holocentric chromosomes of the aphid Macrosiphum euphorbiae (Thomas, 1878) have been carried out using silver staining and C-banding (followed by chromomycin A3 and DAPI staining) in order to improve our ...
Valentina Monti +2 more
doaj +2 more sources
Unique territorial and compartmental organization of chromosomes in the holocentric silkworm [PDF]
The EMBO JournalHallmarks of multicellular eukaryotic genome organization are chromosome territories, compartments, and loop-extrusion-mediated structures, including TADs. However, these have mainly been observed in model organisms, and most eukaryotes remain unexplored.
José Gil +12 more
doaj +2 more sources
Recent advances in plant kinetochore research [PDF]
Frontiers in Cell and Developmental BiologyFaithful chromosome segregation is crucial for cell division in eukaryotes, facilitated by the kinetochore, a multi-subunit protein complex that connects chromosomes to the spindle microtubules.
Elena Kozgunova, Elena Kozgunova
doaj +2 more sources
Sex-specific recombination landscape in a species with holocentric chromosomes
GeneticsAbstract The rate and chromosomal positioning of meiotic recombination significantly affects the distribution of the genetic diversity in eukaryotic genomes. Many studies have revealed sex-specific recombination patterns, with male recombination typically biased toward chromosome ends, while female recombination is more evenly ...
Sebastian Chmielewski +2 more
exaly +2 more sources
Improved Basic Cytogenetics Challenges Holocentricity of Butterfly Chromosomes [PDF]
Cytogenetic and Genome Research, 2022 Mitotic chromosomes of butterflies, which look like dots or short filaments in most published data, are generally considered to lack localised centromeres and thus to be holokinetic. This particularity, observed in a number of other invertebrates, is associated with meiotic particularities known as “inverted meiosis,” in which the first division is ...
Bernard Dutrillaux +5 more
openaire +2 more sources