24 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Recurrent loss of CenH3 is associated with independent transitions to holocentricity in insects

    Ines A Drinnenberg et al.
    CenH3, the defining component of centromeres in almost all eukaryotes, was independently lost in four insect lineages that transitioned from monocentricity to holocentricity.
    1. Ecology
    2. Evolutionary Biology

    The Natural History of Model Organisms: Advancing biology through a deeper understanding of zebrafish ecology and evolution

    David M Parichy
    The zebrafish is a premier model organism for biomedical research, with a rich array of tools and genomic resources, and combining these with a fuller appreciation of wild zebrafish ecology could greatly extend its utility in biological research.
    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.
    1. Neuroscience

    A neural command circuit for grooming movement control

    Stefanie Hampel et al.
    The identification of a neural circuit that drives a specific grooming movement in Drosophila reveals that it may also control movement parameters, such as duration.
    1. Neuroscience

    Norepinephrine is required to promote wakefulness and for hypocretin-induced arousal in zebrafish

    Chanpreet Singh et al.
    Experiments in genetically modified zebrafish that are unable to produce norepinephrine show that this neurotransmitter promotes wakefulness by mediating the effects of the neuropeptide hypocretin.
    1. Neuroscience

    Nonlinear circuits for naturalistic visual motion estimation

    James E Fitzgerald, Damon A Clark
    New computational models provide insights into how the insect brain estimates the speed and direction of movement.
    1. Neuroscience

    Place cells on a maze encode routes rather than destinations

    Roddy M Grieves et al.
    Place cells in the rat hippocampus encode positions along well-learned routes as opposed to intended destinations.
  1. The natural history of a curator: an interview with Ben Price

    Growing up on a game ranch in Zimbabwe stimulated Ben Price’s fascination with insects – “the sheer diversity of insects makes it impossible to not be interested once you start looking”. He continued to explore nature during a PhD on the evolutionary history of cicadas, and two postdocs. Now, he is the senior curator of Odonata and Small Orders, an eclectic group that includes land-based and aquatic insects, at the Natural History Museum in London.
    1. Ecology
    2. Microbiology and Infectious Disease

    A diverse host thrombospondin-type-1 repeat protein repertoire promotes symbiont colonization during establishment of cnidarian-dinoflagellate symbiosis

    Emilie-Fleur Neubauer et al.
    The colonization of corals and their relatives by intracellular microalgae is facilitated by immunity proteins in the animal that contain thrombospondin-type-1 repeats, elucidating the inter-partner recognition processes required for the establishment of this ecologically important symbiosis.
    1. Neuroscience

    A predictive focus of gain modulation encodes target trajectories in insect vision

    Steven D Wiederman et al.
    Visual neurons in the dragonfly predict the path of a moving target, even when it is occluded or crosses from one eye to the other.

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