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    1. Evolutionary Biology
    2. Genetics and Genomics

    Gene flow mediates the role of sex chromosome meiotic drive during complex speciation

    Colin D Meiklejohn et al.
    Selfish genetic elements may either promote or prevent the evolution of reproductive barriers, depending on the extent of gene flow between species.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Computational prediction of CTCF/cohesin-based intra-TAD loops that insulate chromatin contacts and gene expression in mouse liver

    Bryan J Matthews, David J Waxman
    Certain types of 3D chromatin loops are easy to predict from existing or easily obtainable 2D information, which benefits gene expression studies in tissues/cells/organisms without extensive pre-existing 3D information.
    1. Chromosomes and Gene Expression

    Transcription dynamically patterns the meiotic chromosome-axis interface

    Xiaoji Sun et al.
    Distributed cohesin rings flexibly tether the axial element structure of meiotic chromosomes to the underlying chromatin to readily accommodate ongoing transcription.
    1. Chromosomes and Gene Expression

    Spen links RNA-mediated endogenous retrovirus silencing and X chromosome inactivation

    Ava C Carter et al.
    A long noncoding RNA uses viral mimicry to achieve developmental gene silencing across a chromosome.
    1. Evolutionary Biology

    The birth of a bacterial tRNA gene by large-scale, tandem duplication events

    Gökçe B Ayan et al.
    A bacterial tRNA gene set rapidly evolves, compensating the loss of one tRNA type by large duplication events that increase the gene copy number of a second, different tRNA type.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Evolution of asymmetric gamete signaling and suppressed recombination at the mating type locus

    Zena Hadjivasiliou, Andrew Pomiankowski
    Selection for asymmetric signalling between gametes explains the very origins of sexual asymmetry as seen in mating-types with morphologically similar but self-incompatible gametes.
    1. Cell Biology

    Super-resolution kinetochore tracking reveals the mechanisms of human sister kinetochore directional switching

    Nigel J Burroughs et al.
    Directional switching of sister chromatids during mitosis is regulated by a mechanical clock that is sensitive to the stretch of centromeric chromatin between the chromatids.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    A molecular basis for the differential roles of Bub1 and BubR1 in the spindle assembly checkpoint

    Katharina Overlack et al.
    The mechanism behind the recruitment of the spindle assembly checkpoint protein BubR1 to the kinetochore illustrates how gene duplication and sub-functionalization can influence the functional complexity of a protein network.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    SMC5/6 is required for replication fork stability and faithful chromosome segregation during neurogenesis

    Alisa Atkins et al.
    The structural maintenance of chromosomes complex, SMC5/6, is crucial for brain development and function as it ensures proficient DNA replication in neural progenitor cells prior to chromosome segregation.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Alpha-satellite RNA transcripts are repressed by centromere–nucleolus associations

    Leah Bury et al.
    Single molecule FISH analysis defines the behavior of centromere-derived alpha-satellite transcripts in intact human cells and reveals a critical role for centromere-nucleolar contacts in repressing alpha-satellite transcription.