Results 21 to 30 of about 353,053 (207)

A constitutive heterochromatic region shapes genome organization and impacts gene expression in Neurospora crassa. [PDF]

open access: yesBMC Genomics
Background Organization of the eukaryotic genome is essential for proper function, including gene expression. In metazoans, chromatin loops and Topologically Associated Domains (TADs) organize genes into transcription factories, while chromosomes occupy ...
Reckard AT   +5 more
europepmc   +2 more sources

H3S10 phosphorylation marks constitutive heterochromatin during interphase in early mouse embryos until the 4-cell stage.

open access: bronzeJournal of reproduction and development, 2012
Phosphorylation of histone H3 at Ser10 (H3S10P) has been linked to a variety of cellular processes, such as chromosome condensation and gene activation/silencing.
Karlla Ribeiro-Mason   +7 more
semanticscholar   +3 more sources

PhpCNF-Y transcription factor infiltrates heterochromatin to generate cryptic intron-containing transcripts crucial for small RNA production. [PDF]

open access: yesNat Commun
The assembly of repressive heterochromatin in eukaryotic genomes is crucial for silencing lineage-inappropriate genes and repetitive DNA elements. Paradoxically, transcription of repetitive elements within constitutive heterochromatin domains is required
Srivastav MK   +10 more
europepmc   +2 more sources

Trichostatin A treatment of cloned mouse embryos improves constitutive heterochromatin remodeling as well as developmental potential to term [PDF]

open access: hybridBMC Developmental Biology, 2009
BackgroundGenome reprogramming in early mouse embryos is associated with nuclear reorganization and particular features such as the peculiar distribution of centromeric and pericentric heterochromatin during the first developmental stage.
W. Maalouf   +6 more
semanticscholar   +2 more sources

New Cytogenetic Data for the Neottieae Tribe (Orchidaceae) in the Mediterranean Region. [PDF]

open access: yesPlants (Basel)
This work presents a summary of cytogenetic data, including new information, on several species within the tribe Neottieae, with an update of the karyotype for 23 species belonging to the genera Cephalanthera, Limodorum, Epipactis, and Neottia (including
Turco A   +4 more
europepmc   +2 more sources

Multi-tissue characterization of the constitutive heterochromatin proteome in Drosophila identifies a link between satellite DNA organization and transposon repression. [PDF]

open access: goldPLoS Biol
Chavan A   +12 more
europepmc   +2 more sources

From Effective Interactions Extracted Using Hi-C Data to Chromosome Structures in Conventional and Inverted Nuclei [PDF]

open access: yesPRX Life 1, 013010 (2023), 2023
Contact probabilities between loci, separated by arbitrary genomic distance, for a number of cell types have been reported using genome-wide chromosome conformation capture (Hi-C) experiments. How to extract the effective interaction energies between active euchromatin (A) and inactive heterochromatin (B) directly from the experimental data, without an
arxiv   +1 more source

CHROMOSOMIC STUDIES IN ZEPHYRANTHES CITRINA BAKER (AMARYLLIDACEAE), A POLYPLOID ORNAMENTAL [PDF]

open access: yesBAG. Journal of Basic and Applied Genetics, 2022
Zephyranthes citrina is an ornamental American bulbous plant used as an ornamental garden crop for the aesthetic qualities of its yellow perigonium.
Daviña J.R.   +5 more
doaj   +1 more source

Stress-induced activation of heterochromatic transcription. [PDF]

open access: yesPLoS Genetics, 2010
Constitutive heterochromatin comprising the centromeric and telomeric parts of chromosomes includes DNA marked by high levels of methylation associated with histones modified by repressive marks.
Mireille Tittel-Elmer   +5 more
doaj   +1 more source

Frataxin deficiency alters gene expression in Friedreich ataxia derived IPSC‐neurons and cardiomyocytes

open access: yesMolecular Genetics &Genomic Medicine, Volume 11, Issue 1, January 2023., 2023
FA is a progressive neurodegenerative disorder, but the primary cause of death is heart disease which occurs in 60% of the patients. Several functions of frataxin have been proposed, but none of them fully explain why its deficiency causes the FA phenotypes nor why the most affected cell types are neurons and cardiomyocytes.
Mariana B. Angulo   +6 more
wiley   +1 more source

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