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    1. Cell Biology
    2. Developmental Biology

    Early asymmetric cues triggering the dorsal/ventral gene regulatory network of the sea urchin embryo

    Vincenzo Cavalieri, Giovanni Spinelli
    During early embryogenesis of the sea urchin, asymmetrical positioning of the dorsal/ventral organizer relies upon the suppression of organizer activities in dorsal blastomeres by the Hbox12 homeodomain-containing repressor.
    1. Developmental Biology

    CED-3 caspase acts with miRNAs to regulate non-apoptotic gene expression dynamics for robust development in C. elegans

    Benjamin P Weaver et al.
    A broadly used gene expression regulatory mechanism inactivates targets by CED-3-caspase-mediated proteolysis and works in parallel to miRNAs for diverse non-apoptotic developmental functions.
    1. Developmental Biology
    2. Neuroscience

    Genetic transformation of structural and functional circuitry rewires the Drosophila brain

    Sonia Sen et al.
    Large-scale changes in the brain's functional circuitry can be brought about by simple changes in gene expression in neural stem cells during development.
    1. Developmental Biology

    Hox genes control vertebrate body elongation by collinear Wnt repression

    Nicolas Denans et al.
    The collinear activation of a subset of posterior Hox genes is responsible for establishing a Wnt/T activity gradient that is required to generate the complete body axis, and hence the full set of segments within a vertebrate embryo.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Conservation of transcription factor binding specificities across 600 million years of bilateria evolution

    Kazuhiro R Nitta et al.
    Drosophila has almost all transcription factor binding specificities available to humans; and human transcription factors with divergent specificities operate in cell types that are not found in fruit flies.
    1. Chromosomes and Gene Expression

    The transcriptional cofactor TRIM33 prevents apoptosis in B lymphoblastic leukemia by deactivating a single enhancer

    Eric Wang et al.
    TRIM33 performs an essential function in B cell acute lymphoblastic leukemia through an association with a single cis element.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    Mapping and analysis of Caenorhabditis elegans transcription factor sequence specificities

    Kamesh Narasimhan et al.
    Protein binding microarrays highlight the diversification of DNA-binding motifs for the nuclear hormone receptor and C2H2 zinc finger transcription factor families, and reveal unexpected diversity in motifs for the T-box and DM families.
    1. Neuroscience

    Decoding a neural circuit controlling global animal state in C. elegans

    Patrick Laurent et al.
    Sensory neurons that monitor ambient oxygen control a cascade of responses across multiple layers of interneurons to switch the global state of the nematode C. elegans, reprogramming behavior and gene expression to enable escape from or adaptation to surface exposure.
    1. Developmental Biology
    2. Neuroscience

    Robo2 acts in trans to inhibit Slit-Robo1 repulsion in pre-crossing commissural axons

    Timothy A Evans et al.
    The Roundabout2 receptor acts non-autonomously to promote commissural axons to cross the midline by antagonizing Slit-dependent axon repulsion.
    1. Developmental Biology

    Neuron hemilineages provide the functional ground plan for the Drosophila ventral nervous system

    Robin M Harris et al.
    Hemilineages link neuronal stem cells to behavioral functions by providing a conserved ground plan of neuronal types that evolution then uses to sculpt different types of walking and flight behaviors.