30 results found
    1. Chromosomes and Gene Expression

    Cohesin architecture and clustering in vivo

    Siheng Xiang, Douglas Koshland
    Cohesin adopts a flexible butterfly conformation in vivo and forms spatial and temporal regulated ordered clusters to maintain cohesion and condensation.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Structural basis of Stu2 recruitment to yeast kinetochores

    Jacob A Zahm et al.
    The results here show that Stu2 binds kinetochores by associating with the Ndc80 complex and that the interaction is critical for accurate chromosome segregation during cell division.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Expandable and reversible copy number amplification drives rapid adaptation to antifungal drugs

    Robert T Todd, Anna Selmecki
    Novel segmental chromosome amplifications in Candida albicans provide rapid adaptation to the most widely used antifungal drugs.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Spatial inter-centromeric interactions facilitated the emergence of evolutionary new centromeres

    Krishnendu Guin et al.
    Proximity and homology guided inter-chromosomal translocations drive karyotype evolution.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    A conserved RNA degradation complex required for spreading and epigenetic inheritance of heterochromatin

    Gergana Shipkovenska et al.
    Genetic and biochemical studies show that a conserved ribosome biogenesis complex also localizes to heterochromatin, where it triggers RNA degradation and promotes the spreading and epigenetic inheritance of histone methylation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    An H3K9 methylation-dependent protein interaction regulates the non-enzymatic functions of a putative histone demethylase

    Gulzhan Raiymbek et al.
    A putative histone demethylase in fission yeast has non-enzymatic properties that regulates heterochromatin assembly and epigenetic inheritance.
    1. Chromosomes and Gene Expression

    Centromere deletion in Cryptococcus deuterogattii leads to neocentromere formation and chromosome fusions

    Klaas Schotanus, Joseph Heitman
    Centromere deletion in Cryptococcus deuterogattii results in neocentromeres, which span actively expressed genes and at elevated temperatures cen10∆ mutants are unstable leading to chromosome fusion and silencing of the neocentromere.
    1. Developmental Biology
    2. Plant Biology

    Selective egg cell polyspermy bypasses the triploid block

    Yanbo Mao et al.
    A ménàge à trois introduces extra DNA only to plant embryos, thus skipping endosperm-induced seed hybridization barriers.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Dynamic turnover of centromeres drives karyotype evolution in Drosophila

    Ryan Bracewell et al.
    De novo formation of centromeres creates diverse karyotypes in flies and is accompanied by rapid turnover of centromere-associated satellite repeats.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Genome plasticity in Candida albicans is driven by long repeat sequences

    Robert T Todd et al.
    Previously uncharacterized long repeat sequences are associated with significant genome variation that can increase fitness and promote antifungal drug resistance in diverse isolates of Candida albicans.

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