210 results found
    1. Developmental Biology
    2. Plant Biology

    Cross-species functional diversity within the PIN auxin efflux protein family

    Devin Lee O'Connor et al.
    Comparative genetics between distant plant species shows that for the PIN auxin transport proteins differential membrane and tissue-level accumulation, transport activity, and interaction result in different functional properties in the shoot post transcription.
    1. Evolutionary Biology

    Morphology: Too hip for two sacral vertebrae

    Michelle R Stocker
    A complex pelvic morphology has been discovered in the fossils of one of the largest crocodylians.
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    1. Developmental Biology
    2. Evolutionary Biology

    Developmental Variability: Exerting an influence on evolution

    Charles C Roseman
    Experiments on mice have shown that developmental processes are influencing the generation of phenotypic variation in a way that shapes evolution.
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    1. Developmental Biology
    2. Evolutionary Biology

    Two consecutive microtubule-based epithelial seaming events mediate dorsal closure in the scuttle fly Megaselia abdita

    Juan Jose Fraire-Zamora et al.
    Evolutionary reduction in tissue number involves the simplification of the seaming process but not signaling during epithelial fusion.
    1. Developmental Biology
    2. Evolutionary Biology

    An ancient yet flexible cis-regulatory architecture allows localized Hedgehog tuning by patched/Ptch1

    David S Lorberbaum et al.
    The seemingly simple, constitutive response of the patched/Ptch1 gene to Hedgehog signaling is in fact regulated by large batteries of context-specific Hedgehog-responsive enhancers in both fly and mouse, allowing tissue-specific tuning of the Hedgehog pathway in animal development and evolution.
    1. Developmental Biology
    2. Evolutionary Biology

    The evolutionary origin of bilaterian smooth and striated myocytes

    Thibaut Brunet et al.
    Molecular profiling of annelid myocytes reveals that the last common protostome-deuterostome ancestor already possessed a dual musculature, with visceral smooth muscles ensuring digestion and somatic striated muscles ensuring locomotion.
    1. Evolutionary Biology

    Giant extinct caiman breaks constraint on the axial skeleton of extant crocodylians

    Torsten M Scheyer et al.
    The giant caiman Purussaurus from the Miocene of Venezuela is the first recorded member of crown Crocodylia having three sacrals, thus breaking the otherwise strict vertebral constraint of the group.
    1. Ecology
    2. Microbiology and Infectious Disease

    Endangered wild salmon infected by newly discovered viruses

    Gideon J Mordecai et al.
    Newly discovered viruses in dead and dying farmed Chinook salmon are widely distributed in threatened wild Chinook and sockeye salmon populations.
    1. Neuroscience

    Primate prefrontal neurons signal economic risk derived from the statistics of recent reward experience

    Fabian Grabenhorst et al.
    Neurons in prefrontal cortex track the variance of experienced rewards to guide economic decisions.
    1. Biochemistry and Chemical Biology

    Lack of activity of recombinant HIF prolyl hydroxylases (PHDs) on reported non-HIF substrates

    Matthew E Cockman et al.
    Assays using recombinant HIF prolyl hydroxylases did not support hydroxylation of more than 20 reported non-HIF substrates under conditions where robust HIF hydroxylation was observed.

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