222 results found
    1. Developmental Biology

    Prolonged ovarian storage of mature Drosophila oocytes dramatically increases meiotic spindle instability

    Ethan J Greenblatt et al.
    Meiotic chromosome segregation in mature Drosophila oocytes is sensitive to prolonged quiescence, suggesting that human oocyte instability may result from storage of mature rather than primordial oocytes and be modifiable.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Sgol2 provides a regulatory platform that coordinates essential cell cycle processes during meiosis I in oocytes

    Ahmed Rattani et al.
    Shugoshin-like protein 2 (Sgol2) is involved in a variety of cell cycle process during the first stage of meiotic division.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Sister kinetochore splitting and precocious disintegration of bivalents could explain the maternal age effect

    Agata P Zielinska et al.
    Multiple age-related changes in chromosome architecture could explain why human oocyte aneuploidy increases with advanced maternal age.
    1. Cell Biology

    BUB-1 targets PP2A:B56 to regulate chromosome congression during meiosis I in C. elegans oocytes

    Laura Bel Borja et al.
    BUB-1 recruits PP2A/B56 to regulate chromosome congression in meiosis I.
    1. Cell Biology

    A disassembly-driven mechanism explains F-actin-mediated chromosome transport in starfish oocytes

    Philippe Bun et al.
    On entry to meiosis, chromosomes scattered in the large oocyte nucleus of starfish are collected by an F-actin network, which contracts by an unexpected, myosin-independent mechanism based on local assembly and global disassembly of actin filaments.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Kinetochore-independent chromosome segregation driven by lateral microtubule bundles

    Christina C Muscat et al.
    Chromosomes in C. elegans female reproductive cells segregate through motor-driven movement along lateral microtubule bundles.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    The asymmetry of female meiosis reduces the frequency of inheritance of unpaired chromosomes

    Daniel B Cortes et al.
    Female meiotic spindles correct trisomy by expelling extra chromosomes into the first polar body.
    1. Developmental Biology
    2. Genetics and Genomics

    The GATOR complex regulates an essential response to meiotic double-stranded breaks in Drosophila

    Youheng Wei et al.
    The GATOR complex regulates TORC1 activity during meiosis.
    1. Cell Biology
    2. Developmental Biology

    Control of PNG kinase, a key regulator of mRNA translation, is coupled to meiosis completion at egg activation

    Masatoshi Hara et al.
    The kinase that controls maternal mRNA translation is regulated by phosphorylation of its activating subunit to restrict kinase activity to the developmental window between meiosis completion and early embryogenesis.
    1. Cell Biology

    Actin assembly ruptures the nuclear envelope by prying the lamina away from nuclear pores and nuclear membranes in starfish oocytes

    Natalia Wesolowska et al.
    Combined light and electron microscopy reveals a new function for Arp2/3-mediated actin assembly in nuclear envelope rupture, which leads to a separation of nuclear membranes and pores from the lamina.

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