793 results found
    1. Stem Cells and Regenerative Medicine

    Ecdysone steroid hormone remote controls intestinal stem cell fate decisions via the PPARγ-homolog Eip75B in Drosophila

    Lisa Zipper et al.
    A systemic hormone controls progenitor fate decisions independent of local fate determining pathways in the adult intestinal stem cell niche of Drosophila melanogaster..
    1. Developmental Biology
    2. Genetics and Genomics

    Smchd1 is a maternal effect gene required for genomic imprinting

    Iromi Wanigasuriya et al.
    Imprinted gene expression is set up during a critical window of early embryonic development, by the translation of parental imprints by oocyte-supplied Smchd1 into allele-specific gene silencing.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Natural variation in autumn expression is the major adaptive determinant distinguishing Arabidopsis FLC haplotypes

    Jo Hepworth et al.
    Variation in autumnal expression from starting expression levels and initial cold-down-regulation, rather than epigenetic silencing, is the major field variable conferred by worldwide haplotypes of the floral repressor gene, FLC.
    1. Ecology
    2. Plant Biology

    Seasonal shift in timing of vernalization as an adaptation to extreme winter

    Susan Duncan et al.
    An adaptation to extreme winter has involved a shift to autumn temperature monitoring.
    1. Computational and Systems Biology
    2. Developmental Biology

    Stochasticity in the miR-9/Hes1 oscillatory network can account for clonal heterogeneity in the timing of differentiation

    Nick E Phillips et al.
    Stochasticity introduced computationally into a gene expression oscillator creates heterogeneity in the time of differentiation of identical cells and offers robustness to the progenitor state and the outcome of cell division.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Further support for aneuploidy tolerance in wild yeast and effects of dosage compensation on gene copy-number evolution

    Audrey P Gasch et al.
    Many natural isolates of budding yeast carry extra chromosome copies and show lower-than-expected expression at a subset of amplified genes, which show unique evolutionary signatures.
    1. Immunology and Inflammation

    Modulation of let-7 miRNAs controls the differentiation of effector CD8 T cells

    Alexandria C Wells et al.
    TCR-mediated downregulation of let-7 microRNAs licenses the differentiation of activated CD8 T cells into cytotoxic T lymphocytes.
    1. Neuroscience

    Central Dicer-miR-103/107 controls developmental switch of POMC progenitors into NPY neurons and impacts glucose homeostasis

    Sophie Croizier et al.
    Loss miRNA maturation in proopiomelanocortin (POMC) neurons causes metabolic dysregulation and favors the differentiation of Pomc progenitors into neuropeptide Y neurons, a developmental process that appears to specifically involve miR-103/107.
    1. Developmental Biology

    Maternal Gdf3 is an obligatory cofactor in Nodal signaling for embryonic axis formation in zebrafish

    Brent W Bisgrove et al.
    Maternal Gdf3 and Nodal are interdependent obligatory cofactors in the fundamental patterning of the vertebrate embryonic axis of zebrafish.
    1. Microbiology and Infectious Disease

    Doxycycline has distinct apicoplast-specific mechanisms of antimalarial activity

    Megan Okada et al.
    Doxycycline used at a slightly higher concentration kills Plasmodium falciparum malaria parasites with faster, first-cycle activity through a novel organelle-specific mechanism.

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