10,096 results found
    1. Evolutionary Biology

    Decreased recent adaptation at human mendelian disease genes as a possible consequence of interference between advantageous and deleterious variants

    Chenlu Di, Jesus Murga Moreno ... David Enard
    Harmful genetic variants at mendelian disease genes slow down adaptation, by interfering with the spread of adaptive variants in a population.
    1. Physics of Living Systems

    Unrestrained growth of correctly oriented microtubules instructs axonal microtubule orientation

    Maximilian AH Jakobs, Assaf Zemel, Kristian Franze
    Biased growth of microtubules in the advancing axon tip contributes to the uniform orientation of microtubules in mature axons, which is essential for proper neuronal functioning.
    1. Developmental Biology
    2. Evolutionary Biology

    Cortex cis-regulatory switches establish scale colour identity and pattern diversity in Heliconius

    Luca Livraghi, Joseph J Hanly ... Chris D Jiggins
    The evolution of a butterfly mimetic phenotype is driven by modular cis-regulstory switches controlling a ‘hotspot’ gene.
    1. Neuroscience

    Distinct hierarchical alterations of intrinsic neural timescales account for different manifestations of psychosis

    Kenneth Wengler, Andrew T Goldberg ... Guillermo Horga
    fMRI evidence for distinct hierarchical alterations in intrinsic neural timescales for different positive symptoms of schizophrenia support hierarchical perceptual-inference models of psychosis and suggest local increases in excitation-inhibition ratio.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Systematic analysis of naturally occurring insertions and deletions that alter transcription factor spacing identifies tolerant and sensitive transcription factor pairs

    Zeyang Shen, Rick Z Li ... Christopher K Glass
    Collaborative transcription factors (TFs) exhibit a dominant pattern of a relaxed range of spacing and substantial tolerance of spacing alterations resulting from naturally occurring insertions and deletions in comparison to genetic variants directly affecting TF binding sites.
    1. Cell Biology

    Cytokinesis in vertebrate cells initiates by contraction of an equatorial actomyosin network composed of randomly oriented filaments

    Felix Spira, Sara Cuylen-Haering ... Daniel W Gerlich
    Asymmetric tension increase along the cell equator promotes self-organization of actomyosin into a partially aligned network during cytokinetic cleavage furrow ingression of vertebrate cells.
    1. Developmental Biology

    Identification and functional characterization of muscle satellite cells in Drosophila

    Dhananjay Chaturvedi, Heinrich Reichert ... K VijayRaghavan
    Modeling adult muscle homeostasis, maintenance and repair will now be possible in Drosophila with the discovery of satellite cells equivalents in flight muscles.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Local adaptation and archaic introgression shape global diversity at human structural variant loci

    Stephanie M Yan, Rachel M Sherman ... Rajiv C McCoy
    Graph genotyping of structural variation in diverse human populations reveals functional associations and signatures of local adaptation within poorly resolved regions of the genome.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Little skate genome provides insights into genetic programs essential for limb-based locomotion

    DongAhn Yoo, Junhee Park ... Myungin Baek
    The generation of high-quality little skate reference genome enables molecular mechanism studies of gene regulation.
    1. Computational and Systems Biology
    2. Neuroscience

    Natural-gradient learning for spiking neurons

    Elena Kreutzer, Walter Senn, Mihai A Petrovici
    A parametrization-invariant synaptic plasticity rule based on natural-gradient descent leads to multiple predictions for the biological plasticity process, some of which relate to well-studied phenomena such as heterosynaptic plasticity.

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