1,966 results found
    1. Cell Biology
    2. Computational and Systems Biology

    A positive-feedback-based mechanism for constriction rate acceleration during cytokinesis in Caenorhabditis elegans

    Renat N Khaliullin, Rebecca A Green ... Karen Oegema
    Positive feedback between contractile ring myosin and compression-driven cortical flow can explain the exponential accumulation of contractile ring components and constriction rate acceleration that ensures timely cell separation during cytokinesis.
    1. Genetics and Genomics

    Firefly genomes illuminate parallel origins of bioluminescence in beetles

    Timothy R Fallon, Sarah E Lower ... Jing-Ke Weng
    The first genomic view of beetle luciferase evolution indicates evolutionary independence of luciferase between fireflies and click-beetles, and provide valuable datasets which will accelerate the discovery of new biotechnological tools.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Barcoded bulk QTL mapping reveals highly polygenic and epistatic architecture of complex traits in yeast

    Alex N Nguyen Ba, Katherine R Lawrence ... Michael M Desai
    A bulk barcoded quantitative trait locus approach increases the power and resolution of genotype-phenotype mapping in yeast, revealing that the genetic architecture of 18 complex traits is highly polygenic, and is characterized by widespread epistatic interactions and pleiotropic effects.
    1. Neuroscience

    Astrocyte GluN2C NMDA receptors control basal synaptic strengths of hippocampal CA1 pyramidal neurons in the stratum radiatum

    Peter H Chipman, Chi Chung Alan Fung ... Yukiko Goda
    Electrophysiology experiments with genetic and pharmacological manipulations identify a role for astrocyte GluN2C NMDA receptors in maintaining the broad range of presynaptic strengths, which is suggested by numerical simulations to enhance the expression of synaptic plasticity.
    1. Neuroscience

    A novel monomeric amyloid β-activated signaling pathway regulates brain development via inhibition of microglia

    Hyo Jun Kwon, Devi Santhosh, Zhen Huang
    Molecular genetics identifies a novel microglial pathway essential for mouse brain development and a previously unknown anti-inflammatory activity of monomeric amyloid β that activates this pathway.
    1. Neuroscience

    Low doses of the organic insecticide spinosad trigger lysosomal defects, elevated ROS, lipid dysregulation, and neurodegeneration in flies

    Felipe Martelli, Natalia H Hernandes ... Hugo J Bellen
    The organic insecticide spinosad severely impacts metabolism, the cell biology, and the visual system of the model insect Drosophila, suggesting that it poses a threat to other non-pest insect exposed to it in the field.
    1. Microbiology and Infectious Disease

    Fitness advantage of Bacteroides thetaiotaomicron capsular polysaccharide in the mouse gut depends on the resident microbiota

    Daniel Hoces, Giorgia Greter ... Emma Slack
    Neutral tagging and detailed analysis of bacterial growth kinetics can quantify the mechanisms of colonization resistance in differently colonized animals.
    1. Neuroscience

    Tonotopic and non-auditory organization of the mouse dorsal inferior colliculus revealed by two-photon imaging

    Aaron Benson Wong, J Gerard G Borst
    A spatial analysis of auditory and non-auditory properties of excitatory and inhibitory neurons in the mouse dorsal inferior colliculus defines the border between the lateral and the dorsal cortex.
    1. Neuroscience

    Astrocytes mediate two forms of spike timing-dependent depression at entorhinal cortex-hippocampal synapses

    Irene Martínez-Gallego, Heriberto Coatl-Cuaya, Antonio Rodriguez-Moreno
    Two different forms of brain plasticity require astrocytes and show different action mechanisms at enthorrinal cortex hippocampal synapses.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Rad52-Rad51 association is essential to protect Rad51 filaments against Srs2, but facultative for filament formation

    Emilie Ma, Pauline Dupaigne ... Eric Coïc
    The association of Rad52 with Rad51, while not critical for Rad51 filament formation, is crucial to protect Rad51 filaments from Srs2 translocase activity through the association of Rad52 with complete Rad51 filaments.

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