35 results found
    1. Developmental Biology
    2. Evolutionary Biology

    Bacterial contribution to genesis of the novel germ line determinant oskar

    Leo Blondel et al.
    Evidence suggests that the oskar gene, a critical germ line determinant in insects, was formed by fusion of bacterial and eukaryotic sequences at least 450 million years ago.
    1. Ecology

    Rarity is a more reliable indicator of land-use impacts on soil invertebrate communities than other diversity metrics

    Andrew Dopheide et al.
    Rarity metrics reveal pervasive negative impacts of agricultural land use on soil invertebrate communities, whereas widely-used richness and diversity metrics underestimate the magnitude of these impacts.
    1. Neuroscience

    Robust olfactory responses in the absence of odorant binding proteins

    Shuke Xiao et al.
    Although odorant binding proteins are widely believed to be required for transport of odorants to receptors, six types of sensilla of Drosophila respond robustly in their absence to many odor stimuli.
    1. Computational and Systems Biology
    2. Neuroscience

    Bumblebee visual allometry results in locally improved resolution and globally improved sensitivity

    Gavin J Taylor et al.
    Bigger bumblebee eyes have better vision, yet their field of view, sensitivity, and resolution do not all simply scale up with eye size, being improved locally instead.
    1. Ecology

    The golden mimicry complex uses a wide spectrum of defence to deter a community of predators

    Stano Pekár et al.
    A mimetic complex composed of at least 140 species of ants, wasps, spiders, true bugs and treehoppers, all with conspicuous golden bodies, has been discovered.
    1. Evolutionary Biology

    Convergent evolution of small molecule pheromones in Pristionchus nematodes

    Chuanfu Dong et al.
    Unexpected structural diversity of nematode small molecules, as revealed by high-resolution phylogenetic analysis, suggests recurrent biochemical innovation, a pattern that is probably typical across animals.
    1. Ecology
    2. Evolutionary Biology

    Nitric oxide radicals are emitted by wasp eggs to kill mold fungi

    Erhard Strohm et al.
    To protect their food and themselves against detrimental mould fungi, the eggs of a wasp species synthesize and emit remarkable amounts of gaseous nitrogen oxides that are highly effective antimicrobials.
    1. Neuroscience

    An insect-like mushroom body in a crustacean brain

    Gabriella Hannah Wolff et al.
    An insect-like mushroom body in one group of crustaceans, the mantis shrimps (Stomatopoda), suggests either an ancient origin of this center and its reduction and loss in other crustaceans, or an extraordinary example of convergent evolution with the insect mushroom body.
    1. Developmental Biology

    Folded gastrulation and T48 drive the evolution of coordinated mesoderm internalization in flies

    Silvia Urbansky et al.
    Functional recapitulation of a likely evolutionary gain in gene expression shows that two genes are sufficient to switch mesoderm cell internalization from stochastic cell ingression to coordinated epithelial invagination.
    1. Genetics and Genomics
    2. Plant Biology

    A gene horizontally transferred from bacteria protects arthropods from host plant cyanide poisoning

    Nicky Wybouw et al.
    The enzyme that allows some mites and insects to detoxify the hydrogen cyanide produced by plants has been identified.

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