331 results found
    1. Cell Biology
    2. Chromosomes and Gene Expression

    A conserved RNA degradation complex required for spreading and epigenetic inheritance of heterochromatin

    Gergana Shipkovenska et al.
    Genetic and biochemical studies show that a conserved ribosome biogenesis complex also localizes to heterochromatin, where it triggers RNA degradation and promotes the spreading and epigenetic inheritance of histone methylation.
    1. Chromosomes and Gene Expression

    Rapid epigenetic adaptation to uncontrolled heterochromatin spreading

    Jiyong Wang et al.
    Redundant pathways prevent heterochromatin spreading and ectopic heterochromatin assembly; and plasticity of heterochromatin assembly allows cells to adapt to heterochromatin stress.
    1. Stem Cells and Regenerative Medicine

    Ovaries absent links dLsd1 to HP1a for local H3K4 demethylation required for heterochromatic gene silencing

    Fu Yang et al.
    A Drosophila fertility gene is identified that acts as a linker between HP1a and local H3K4 demethylation during HP1a-mediated gene silencing that is required for ovary development and transposon silencing..
    1. Genetics and Genomics

    Establishment of H3K9me3-dependent heterochromatin during embryogenesis in Drosophila miranda

    Kevin H-C Wei et al.
    Heterochromatin is established at nucleation sites associated with open chromatin and RNA transcripts and matures into stable domains if they are found near transposable elements targeted by maternally deposited piRNAs.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    HP1α is a chromatin crosslinker that controls nuclear and mitotic chromosome mechanics

    Amy R Strom et al.
    Micromanipulation experiments demonstrate that HP1α strengthens interphase and mitotic chromosome mechanics and maintains nuclear shape by chromatin crosslinking, separate from histone methylation.
    1. Genetics and Genomics

    Pervasive epigenetic effects of Drosophila euchromatic transposable elements impact their evolution

    Yuh Chwen G Lee, Gary H Karpen
    The ability of transposable elements to epigenetically influence adjacent genes impacts genome evolution by driving substantial variation in transposon numbers between species.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Population scale mapping of transposable element diversity reveals links to gene regulation and epigenomic variation

    Tim Stuart et al.
    Fine mapping of transposable element presence/absence variation amongst 216 Arabidopsis strains uncovers widespread novel genetic diversity that underlies differences in transcription and DNA methylation patterns.
    1. Microbiology and Infectious Disease

    A plant-like mechanism coupling m6A reading to polyadenylation safeguards transcriptome integrity and developmental gene partitioning in Toxoplasma

    Dayana C Farhat et al.
    The epitranscriptomic-driven mRNA polyadenylation pathway protects transcriptome integrity by restricting transcriptional read-throughs and RNA chimera formation in apicomplexan parasites and plants.
    1. Plant Biology

    The Arabidopsis thaliana mobilome and its impact at the species level

    Leandro Quadrana et al.
    Population genomics in Arabidopsis thaliana uncovers an extensive repertoire of active transposable element families at the species level and reveals their importance as a source of rare alleles with large effects.
    1. Microbiology and Infectious Disease

    The Tudor SND1 protein is an m6A RNA reader essential for replication of Kaposi’s sarcoma-associated herpesvirus

    Belinda Baquero-Perez et al.
    SND1 has m6A-reading ability and is essential for Kaposi's sarcoma-associated lytic replication.

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