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    1. Cell Biology
    2. Chromosomes and Gene Expression

    The preRC protein ORCA organizes heterochromatin by assembling histone H3 lysine 9 methyltransferases on chromatin

    Sumanprava Giri et al.
    Origin recognition complex-associated (ORCA) is crucial for the stability of the Histone H3 lysine 9 methyltransferase megacomplex, which is essential for heterochromatin organization.
    1. Chromosomes and Gene Expression

    Chromatin structure-dependent histone incorporation revealed by a genome-wide deposition assay

    Hiroaki Tachiwana et al.
    A new method using permeabilized cells and recombinant histones enables to analyze histone incorporations at the DNA sequence level.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    PRDM9 activity depends on HELLS and promotes local 5-hydroxymethylcytosine enrichment

    Yukiko Imai et al.
    Biochemical and genetic approaches uncover a chromatin remodeler for PRDM9 binding and the parallel local epigenetic modification of cytosines in mouse spermatocytes.
    1. Chromosomes and Gene Expression

    Differentiating Drosophila female germ cells initiate Polycomb silencing by regulating PRC2-interacting proteins

    Steven Z DeLuca et al.
    Characterization of Drosophila female germ cell differentiation shows that nurse cells initiate Polycomb silencing by regulating Pcl and Scm levels to alter the biochemical properties of the PRC2 H3K27 methylase.
    1. Genetics and Genomics

    Loss of centromere function drives karyotype evolution in closely related Malassezia species

    Sundar Ram Sankaranarayanan et al.
    The centromeres in Malassezia species, by breakage or inactivation, facilitate genome rearrangements that can result in varying karyotypes and contribute to the evolution of these species.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Rif1 inhibits replication fork progression and controls DNA copy number in Drosophila

    Alexander Munden et al.
    To regulate DNA copy number during development in Drosophila, the SUUR protein recruits Rif1 to replisomes where Rif1 inhibits replication fork progression, thus controlling copy number independently of origin firing.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Maternal LSD1/KDM1A is an essential regulator of chromatin and transcription landscapes during zygotic genome activation

    Katia Ancelin et al.
    The maternally provided histone demethylase LSD1/KDM1A has an instrumental role at the beginning of life, shaping the histone methylation landscape and the transcriptional repertoire of the early mouse embryo.
    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. Developmental Biology
    2. Chromosomes and Gene Expression

    The scaffold protein Nde1 safeguards the brain genome during S phase of early neural progenitor differentiation

    Shauna L Houlihan, Yuanyi Feng
    Differentiation-specific maintenance of genome integrity during S-phase is essential for establishing both the structure and function of the cerebral cortex.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A team of heterochromatin factors collaborates with small RNA pathways to combat repetitive elements and germline stress

    Alicia N McMurchy et al.
    Genome-wide profiling and functional analyses reveal a network of heterochromatin and small RNA factors that silences repetitive elements and prevents genotoxic stress to ensure fertility.