Antagonistic histone H2A variants and autonomous heterochromatin formation shape epigenomic patterns in Arabidopsis [PDF]
Heterochromatin formation is pivotal in many eukaryotes with repetitive sequences, such as transposable elements (TEs). However, in plants, where the known de novo DNA methylation mechanism (RdDM) targets euchromatin, how heterochromatin is formed in a ...
Shoko Oda +7 more
doaj +2 more sources
Budding yeast Saccharomyces cerevisiae and fission yeast Schizosaccharomyces pombe are good models for heterochromatin study. In S. pombe, H3K9 methylation and Swi6, an ortholog of mammalian HP1, lead to heterochromatin formation. However, S.
Junsoo Oh +3 more
doaj +1 more source
Global regulation of heterochromatin spreading by Leo1 [PDF]
Heterochromatin plays important roles in eukaryotic genome regulation. However, the repressive nature of heterochromatin combined with its propensity to self-propagate necessitates robust mechanisms to contain heterochromatin within defined boundaries ...
Laure Verrier +6 more
doaj +1 more source
The proper splicing of RNAi factors is critical for pericentric heterochromatin assembly in fission yeast. [PDF]
Heterochromatin preferentially assembles at repetitive DNA elements, playing roles in transcriptional silencing, recombination suppression, and chromosome segregation.
Scott P Kallgren +8 more
doaj +1 more source
Different behaviour of C-banded peri-centromeric heterochromatin between sex chromosomes and autosomes in Polyphagan beetles [PDF]
Heterochromatin variation was studied after C-banding of male karyotypes with a XY sex formula from 224 species belonging to most of the main families of Coleoptera.
Anne-Marie Dutrillaux +1 more
doaj +3 more sources
Constitutive Heterochromatin in Eukaryotic Genomes: A Mine of Transposable Elements
Transposable elements (TEs) are abundant components of constitutive heterochromatin of the most diverse evolutionarily distant organisms. TEs enrichment in constitutive heterochromatin was originally described in the model organism Drosophila ...
René Massimiliano Marsano +1 more
doaj +1 more source
Maternal depletion of Piwi, a component of the RNAi system, impacts heterochromatin formation in Drosophila. [PDF]
A persistent question in epigenetics is how heterochromatin is targeted for assembly at specific domains, and how that chromatin state is faithfully transmitted.
Tingting Gu, Sarah C R Elgin
doaj +1 more source
DNA Double-Strand Break Repair: All Roads Lead to HeterochROMAtin Marks
In response to DNA double-strand breaks (DSBs), chromatin modifications orchestrate DNA repair pathways thus safeguarding genome integrity. Recent studies have uncovered a key role for heterochromatin marks and associated factors in shaping DSB repair ...
Pierre Caron +2 more
doaj +1 more source
Rapid epigenetic adaptation to uncontrolled heterochromatin spreading
Heterochromatin, a highly compact chromatin state characterized by histone H3K9 methylation and HP1 protein binding, silences the underlying DNA and influences the expression of neighboring genes.
Jiyong Wang, Bharat D Reddy, Songtao Jia
doaj +1 more source
Rbm10 facilitates heterochromatin assembly via the Clr6 HDAC complex
Splicing factors have recently been shown to be involved in heterochromatin formation, but their role in controlling heterochromatin structure and function remains poorly understood.
Martina Weigt +7 more
doaj +1 more source

