97 results found
    1. Developmental Biology
    2. Evolutionary Biology

    Evolution of limb development in cephalopod mollusks

    Oscar A Tarazona et al.
    Cuttlefish embryos reveal that cephalopod mollusks evolved specialized arms and tentacles by activating the same genetic circuits that control development of limbs in arthropods and vertebrates.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    'Palaeoshellomics’ reveals the use of freshwater mother-of-pearl in prehistory

    Jorune Sakalauskaite et al.
    Ancient proteomes from tiny shell ornaments were successfully characterised for the first time, showing the unexpected use of mother-of-pearl from local riverine molluscs in both coastal and inland prehistoric sites.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Ancient origins of arthropod moulting pathway components

    André Luiz de Oliveira et al.
    Evolutionary reconstruction of the ecdysis pathway shows that its major elements are present in the majority of metazoans, providing evidence that they originated much earlier than currently assumed.
    1. Genetics and Genomics
    2. Neuroscience

    Co-expression of xenopsin and rhabdomeric opsin in photoreceptors bearing microvilli and cilia

    Oliver Vöcking et al.
    The recently characterized opsin group of xenopsins is likely a major player in animal eye evolution and may have been present in an ancient, highly plastic eye photoreceptor cell type.
    1. Neuroscience

    Hidden synaptic differences in a neural circuit underlie differential behavioral susceptibility to a neural injury

    Akira Sakurai et al.
    Animal-to-animal variability in neural circuit elements is often hidden under normal conditions, but becomes functionally relevant when the system is challenged by injury.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Alternative splicing of coq-2 controls the levels of rhodoquinone in animals

    June H Tan et al.
    The switch from ubiquinone to rhodoquinone synthesis that is required for parasitic helminths to survive in anaerobic host tissues is due to alternative splicing of polyprenyltransferase COQ-2.
    1. Evolutionary Biology
    2. Neuroscience

    The visual pigment xenopsin is widespread in protostome eyes and impacts the view on eye evolution

    Clemens Christoph Döring et al.
    The employment of xenopsin in ciliary and mixed microvillar/ciliary eye sensory cells in several protostome animals suggests high evolutionary plasticity of photoreceptors.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Rhodoquinone biosynthesis in C. elegans requires precursors generated by the kynurenine pathway

    Samantha Del Borrello et al.
    Parasitic helminths infect over a billion humans and use unusual anaerobic metabolism that needs a rare electron carrier, Rhodoquinone (RQ), whose synthesis requires the kynurenine pathway of tryptophan degradation.
    1. Neuroscience

    Luqin-like RYamide peptides regulate food-evoked responses in C. elegans

    Hayao Ohno et al.
    Identification and functional characterization of C. elegans luqin-like arginine-tyrosine-NH2 (RYamide) peptides reveal their critical role in feeding-related processes.
    1. Developmental Biology
    2. Evolutionary Biology

    Wnt/β-catenin signaling is an evolutionarily conserved determinant of chordate dorsal organizer

    Iryna Kozmikova, Zbynek Kozmik
    Wnt/beta-catenin signaling is essential for the specification of dorsal cell fate in amphioxus, suggesting a common evolutionary origin for the formation of the dorsal organizer in chordates.

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