358 results found
    1. Genetics and Genomics

    Large, three-generation human families reveal post-zygotic mosaicism and variability in germline mutation accumulation

    Thomas A Sasani et al.
    Rates of germline mutation accumulation are highly variable across families of similar genetic ancestry, and post-zygotic mosaicism is a substantial source of de novo mutations.
    1. Developmental Biology

    Multiscale analysis of single and double maternal-zygotic Myh9 and Myh10 mutants during mouse preimplantation development

    Markus Frederik Schliffka et al.
    During mouse preimplantation development, the complete loss of actomyosin contractility abolishes cytokinesis but not apico-basal polarisation, lineage specification, or fluid accumulation, which are the critical steps to the formation of the blastocyst.
    1. Genetics and Genomics

    A confinable home-and-rescue gene drive for population modification

    Nikolay P Kandul et al.
    Generation of a home-and-rescue gene drive targeting an essential gene reveals confinable population modification.
    1. Developmental Biology
    2. Genetics and Genomics

    Odd-paired is a pioneer-like factor that coordinates with Zelda to control gene expression in embryos

    Theodora Koromila et al.
    The gene Odd-paired is a late-acting regulator of zygotic gene expression, functioning coordinately with Zelda to influence chromatin accessibility and affecting genes expressed along both axes of Drosophila embryos.
    1. Microbiology and Infectious Disease

    Programmed genome editing of the omega-1 ribonuclease of the blood fluke, Schistosoma mansoni

    Wannaporn Ittiprasert et al.
    Gene knock-out of the omega-1 ribonuclease of Schistosoma mansoni eggs resulted in immunologically impaired phenotype, showcasing the novel application of CRISPR/Cas9 genome editing and utility for functional genomics in schistosomes.
    1. Cell Biology
    2. Developmental Biology

    Notochord vacuoles absorb compressive bone growth during zebrafish spine formation

    Jennifer Bagwell et al.
    Live imaging and genetic analyses revealed that notochord vacuoles play a critical role in spine morphogenesis by absorbing vertebral bone growth, thus implicating notochord mechanics in congenital scoliosis.
    1. Developmental Biology

    An oxygen-insensitive Hif-3α isoform inhibits Wnt signaling by destabilizing the nuclear β-catenin complex

    Peng Zhang et al.
    Hif/Hif-3α has two distinct roles in cells: activating HRE-dependent gene expression and binding to β-catenin to destabilize the nuclear β-catenin complex.
    1. Developmental Biology

    The invariant cleavage pattern displayed by ascidian embryos depends on spindle positioning along the cell's longest axis in the apical plane and relies on asynchronous cell divisions

    Rémi Dumollard et al.
    Cell cycle asynchrony regulates apical cell shape to drive cell division orientation in the apical plane.
    1. Cell Biology
    2. Developmental Biology

    Physically asymmetric division of the C. elegans zygote ensures invariably successful embryogenesis

    Radek Jankele et al.
    Systematic analysis of C. elegans zygotes manipulated to divide equally demonstrates that daughter cell size asymmetry is critical for proper cell cycle timing, positioning, and fates during subsequent embryogenesis.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Selfing is the safest sex for Caenorhabditis tropicalis

    Luke M Noble et al.
    Out breeding depression in Caenorhabditis tropicalis is due to common maternal-offspring incompatibilities that interact with a highly heterogeneous genetic background and may provide a short-term advantage to inbreeding.

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