248 results found
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Amplification of a broad transcriptional program by a common factor triggers the meiotic cell cycle in mice

    Mina L Kojima et al.
    The switch from mitotic cell cycles to the one meiotic cell cycle in each generation is triggered through dramatic upregulation of a broad gene expression program by transcriptional regulator STRA8.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Genome-wide identification of lineage and locus specific variation associated with pneumococcal carriage duration

    John A Lees et al.
    Sequence changes in the pneumococcal genome explain most of the variability in duration of asymptomatic carriage with serotype, antibiotic resistance and prophage accounting for the largest effects.
    1. Ecology
    2. Genetics and Genomics

    Viral dark matter and virus–host interactions resolved from publicly available microbial genomes

    Simon Roux et al.
    From public microbial genomes, VirSorter revealed 12,498 viral genome sequences that expand the map of the global virosphere and whose analyses improve understanding of viral taxonomy, evolution and virus-host interactions.
    1. Chromosomes and Gene Expression

    Cohesin-interacting protein WAPL-1 regulates meiotic chromosome structure and cohesion by antagonizing specific cohesin complexes

    Oliver Crawley et al.
    By specifically antagonizing binding of complexes carrying COH-3/4 kleisins, WAPL-1 regulates chromosome structure and cohesion throughout meiotic prophase.
    1. Chromosomes and Gene Expression

    The kinetochore prevents centromere-proximal crossover recombination during meiosis

    Nadine Vincenten et al.
    The meiotic DNA recombination landscape is locally influenced by the kinetochore to minimize potentially deleterious pericentromeric crossover recombination.
    1. Cell Biology
    2. Developmental Biology

    SUMO is a pervasive regulator of meiosis

    Nikhil R Bhagwat et al.
    Multi-dimensional global proteomics describes the SUMO-modified proteome during meiosis and reveals novel roles in regulating the key events of meiotic chromosome metabolism.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Polo-like kinase-dependent phosphorylation of the synaptonemal complex protein SYP-4 regulates double-strand break formation through a negative feedback loop.

    Saravanapriah Nadarajan et al.
    PLK-1/2-mediated SYP-4 phosphorylation is dependent on crossover precursor formation, triggering a switch in the dynamic state of the synaptonemal complex that reduces the formation of further double-strand breaks at late meiotic prophase.
    1. Evolutionary Biology

    Resurrection of a global, metagenomically defined gokushovirus

    Paul C Kirchberger, Howard Ochman
    Isolation of a gokushovirus capable of lysogenizing enterobacteria challenges previous notions about the biology of the most prolific phages within the Microviridae and facilitates experimental study in a model organism.
    1. Chromosomes and Gene Expression

    Transcription of a 5’ extended mRNA isoform directs dynamic chromatin changes and interference of a downstream promoter

    Minghao Chia et al.
    Expression of a 5' extended mRNA isoform represses transcription of a downstream promoter.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Meiosis I chromosome segregation is established through regulation of microtubule–kinetochore interactions

    Matthew P Miller et al.
    Preventing premature interactions between microtubules and protein-based structures called kinetochores ensures that chromosomes are segregated by meiosis rather than mitosis in reproductive cells.

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