41 results found
    1. Genetics and Genomics

    Utility of polygenic embryo screening for disease depends on the selection strategy

    Todd Lencz et al.
    Preimplantation screening of embryos using polygenic risk scores may substantially reduce risk for a given complex disease, but this effect depends on several quantifiable factors and raises significant ethical issues.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Transitions in cell potency during early mouse development are driven by Notch

    Sergio Menchero et al.
    The Notch signaling pathway drives transitions in differentiation capacities during the gradual loss of potency that occurs in the preimplantation mouse embryo before the onset of the first lineage decisions.
    1. Chromosomes and Gene Expression

    Conversion of random X-inactivation to imprinted X-inactivation by maternal PRC2

    Clair Harris et al.
    The PRC2 Polycomb complex made in the mouse oocyte prevents transcriptional inactivation of the maternal X-chromosome in the early embryo.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Chromatin dynamics and the role of G9a in gene regulation and enhancer silencing during early mouse development

    Jan J Zylicz et al.
    Silencing of gene regulatory elements by modifications of DNA-bound proteins promotes the progression of early mouse development.
    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

    Polygenic Screening: What’s the use?

    Jason M Fletcher et al.
    A theoretical framework predicts that using polygenic screening to select embryos against traits that depend on many genes has few benefits.
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    1. Developmental Biology

    Deficient spermiogenesis in mice lacking Rlim

    Feng Wang et al.
    Genetic analyses in mice identifies Rlim in the spermatogenic cell lineage as a regulator of cytoplasmic reduction during spermiogenesis.
    1. Cell Biology
    2. Developmental Biology

    The ribosomal RNA m5C methyltransferase NSUN-1 modulates healthspan and oogenesis in Caenorhabditis elegans

    Clemens Heissenberger et al.
    In nematode worms, NSUN-1 methylates ribosomal RNA and influences phenotypes related to aging, stress resistance, germ line development, and cuticle integrity by regulating translation of specific mRNAs.
    1. Developmental Biology

    DNA methylation and gene expression changes derived from assisted reproductive technologies can be decreased by reproductive fluids

    Sebastian Canovas et al.
    Reproductive fluids help the correct establishment of some epigenetic marks and gene expression in preimplantation pig embryos.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Stochastic modelling, Bayesian inference, and new in vivo measurements elucidate the debated mtDNA bottleneck mechanism

    Iain G Johnston et al.
    New modelling, statistics, and experiments show that cellular populations of mitochondrial DNA (mtDNA) evolve during development according to solvable stochastic dynamics involving binomial partitioning and random turnover, facilitating a predictive and quantitative theory of the mtDNA bottleneck.

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