2,346 results found
    1. Genetics and Genomics

    Telomeres: Getting to grips with circular chromosomes

    Constance Nugent, Katsunori Sugimoto
    A strain of budding yeast that contains one large chromosome reveals how the telomere capping complex CST maintains linear but not circular chromosomes.
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    1. Cell Biology

    Kinetochores attached to microtubule-ends are stabilised by Astrin bound PP1 to ensure proper chromosome segregation

    Duccio Conti et al.
    Human chromosome-microtubule attachments are stabilised by Astrin-mediated dynamic delivery of PP1 phosphatase to the attachment site, which ensures the normal segregation of chromosomes.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Meiotic drive of female-inherited supernumerary chromosomes in a pathogenic fungus

    Michael Habig et al.
    Female-inherited supernumerary chromosomes that lack a male-inherited homolog are transmitted to all meiotic products instead of the expected half, which indicates an additional amplification of unpaired chromosomes during meiosis.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Modulation of Prdm9-controlled meiotic chromosome asynapsis overrides hybrid sterility in mice

    Sona Gregorova et al.
    Prdm9-generated meiotic asynapsis of homologous chromosomes in mouse subspecific hybrids causes hybrid sterility and can be reversed by introducing random stretches of consubspecific sequence (≥ 27Mb) on four chromosomes most sensitive to asynapsis.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Chromosome mis-segregation and cytokinesis failure in trisomic human cells

    Joshua M Nicholson et al.
    Aneuploidy can cause chromosome mis-segregation and specific cellular phenotypes driven by expression of genes on the extra chromosome.
    1. Genetics and Genomics

    A non-mosaic transchromosomic mouse model of Down syndrome carrying the long arm of human chromosome 21

    Yasuhiro Kazuki et al.
    TcMAC21 is an appropriate “next gen” mouse model for DS research, and provides a proof of concept of using artificial chromosomes to generate non-mosaic humanized animal models of chromosome disorders.
    1. Chromosomes and Gene Expression
    2. Physics of Living Systems

    Chromosome organization by one-sided and two-sided loop extrusion

    Edward J Banigan et al.
    Seemingly contradictory findings of single-molecule and in vivo experiments on a major mechanism of chromosome organization are reconciled by computationally investigating mechanisms of loop extrusion that are consistent with both.
    1. Evolutionary Biology
    2. Genetics and Genomics

    The evolutionary plasticity of chromosome metabolism allows adaptation to constitutive DNA replication stress

    Marco Fumasoni, Andrew W Murray
    Evolutionary adaptation to a constitutive perturbation of DNA replication reveals that adaptive mutations in three conserved pathways interact to restore faithful chromosome replication and segregation.
    1. Chromosomes and Gene Expression

    Distinct roles of ATM and ATR in the regulation of ARP8 phosphorylation to prevent chromosome translocations

    Jiying Sun et al.
    ATM plays an important role in maintaining the fidelity of DNA repair through the regulation of ARP8 phosphorylation to prevent the chromosome abnormality.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    The Aquilegia genome provides insight into adaptive radiation and reveals an extraordinarily polymorphic chromosome with a unique history

    Danièle L Filiault et al.
    The evolution columbine genus involved frequent mixing between incipient species, and one chromosome appears to have taken its own path.

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