104 results found
    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. Genetics and Genomics

    Loss of centromere function drives karyotype evolution in closely related Malassezia species

    Sundar Ram Sankaranarayanan et al.
    The centromeres in Malassezia species, by breakage or inactivation, facilitate genome rearrangements that can result in varying karyotypes and contribute to the evolution of these species.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Mitotic fidelity requires transgenerational action of a testis-restricted HP1

    Mia T Levine et al.
    Analysis of a spermiogenesis protein reveals a new chromatin requirement for synchrony between maternal DNA packaged in the egg and sperm-packaged paternal DNA in the first embryonic mitosis in Drosophila melanogaster.
    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. Evolutionary Biology
    Mouse illustration

    The Natural History of Model Organisms: Insights into mammalian biology from the wild house mouse Mus musculus

    Megan Phifer-Rixey, Michael W Nachman
    Studies of the house mouse Mus musculus have provided important insights into mammalian biology, and efforts to study wild house mice and to create new inbred strains from wild populations have the potential to increase its usefulness as a model system.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    wtf genes are prolific dual poison-antidote meiotic drivers

    Nicole L Nuckolls et al.
    Selfish wtf meiotic drive genes use overlapping transcripts to encode both a trans-acting poison to kill gametes that do not inherit the gene and a gamete-autonomous antidote to specifically rescue the gametes that do.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    9Å structure of the COPI coat reveals that the Arf1 GTPase occupies two contrasting molecular environments

    Svetlana O Dodonova et al.
    A molecular model of the assembled COPI coat, determined by cryo-electron tomography of an in vitro reconstituted budding reaction, reveals details of interactions mediating coat assembly and shows the binding site of ArfGAP2.
    1. Developmental Biology

    Revised roles of ISL1 in a hES cell-based model of human heart chamber specification

    Roberto Quaranta et al.
    Loss and gain-of-function investigation uncovers a regulatory network controlling human heart chamber specification in which the cardiac precursor gene ISL1 accelerates ventricular induction and antagonizes retinoic acid-driven atrial commitment.
    1. Neuroscience

    Epigenetic regulation of lateralized fetal spinal gene expression underlies hemispheric asymmetries

    Sebastian Ocklenburg et al.
    Gene expression asymmetries in fetal spinal cord are triggered by epigenetic mechanisms suggesting that handedness has a spinal instead of a cortical origin.
    1. Stem Cells and Regenerative Medicine
    2. Chromosomes and Gene Expression

    Polycomb enables primitive endoderm lineage priming in embryonic stem cells

    Robert S Illingworth et al.
    Polycomb enables lineage priming in mouse embryonic stem cells by establishing a barrier to commitment.

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