1,278 results found
    1. Chromosomes and Gene Expression

    Condensin controls recruitment of RNA polymerase II to achieve nematode X-chromosome dosage compensation

    William S Kruesi et al.
    C. elegans equalizes the expression of X-chromosome genes between the sexes by reducing the recruitment of RNA polymerase II to promoters of X-linked genes in hermaphrodites, using a chromosome-restructuring complex called condensin.
    1. Chromosomes and Gene Expression

    Cooperation between a hierarchical set of recruitment sites targets the X chromosome for dosage compensation

    Sarah Elizabeth Albritton et al.
    Gene regulatory elements can target a chromatin regulatory complex to a single chromosome in the genome through hierarchical specification and long distance cooperation.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Dosage compensation can buffer copy-number variation in wild yeast

    James Hose et al.
    Dosage-compensated gene expression facilitates chromosomal aneuploidy, which presents a rapid route to phenotypic evolution in natural yeast isolates.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    No current evidence for widespread dosage compensation in S. cerevisiae

    Eduardo M Torres et al.
    Dosage compensation does not take place in wild yeast strains.
    1. Cell Biology

    Axial contraction and short-range compaction of chromatin synergistically promote mitotic chromosome condensation

    Tom Kruitwagen et al.
    Condensation and segregation of chromosomes during mitosis is caused by a combination of short-range interactions between nucleosomes and the long-range contraction of chromosome arms mediated by condensin.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Further support for aneuploidy tolerance in wild yeast and effects of dosage compensation on gene copy-number evolution

    Audrey P Gasch et al.
    Many natural isolates of budding yeast carry extra chromosome copies and show lower-than-expected expression at a subset of amplified genes, which show unique evolutionary signatures.
    1. Developmental Biology

    Guy1, a Y-linked embryonic signal, regulates dosage compensation in Anopheles stephensi by increasing X gene expression

    Yumin Qi et al.
    For the first time in a mosquito species an initial Y chromosome signal has been shown to regulate dosage compensation by increasing X chromosome gene expression.
    1. Neuroscience

    Cell-intrinsic mechanisms of temperature compensation in a grasshopper sensory receptor neuron

    Frederic A Roemschied et al.
    The firing rates of neurons in the grasshopper auditory system are surprisingly robust to changes in temperature, and cell-intrinsic mechanisms are sufficient to explain this temperature insensitivity.
    1. Biochemistry and Chemical Biology

    Imaging and energetics of single SSB-ssDNA molecules reveal intramolecular condensation and insight into RecOR function

    Jason C Bell et al.
    Individual SSB-ssDNA complexes undergo reversible condensation and de-condensation that is modulated by RecOR during recombination.
    1. Chromosomes and Gene Expression

    Chromosome-wide mechanisms to decouple gene expression from gene dose during sex-chromosome evolution

    Bayly S Wheeler et al.
    A chromosome-wide mechanism balances X-linked gene expression between the sexes in C. elegans, but no similar chromosome-wide mechanism balances gene expression between X chromosomes and autosomes.

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