25 results found
    1. Cell Biology
    2. Developmental Biology

    Cell lineage and cell cycling analyses of the 4d micromere using live imaging in the marine annelid Platynereis dumerilii

    B Duygu Özpolat et al.
    Lineage tracing at single-cell resolution reveals the presence of mesoteloblasts, the embryonic origin of mesodermal growth zone cells, and diverse cell cycling patterns of these lineages in the 'Polychaete' annelid Platynereis.
    1. Neuroscience

    Synaptic and peptidergic connectome of a neurosecretory center in the annelid brain

    Elizabeth A Williams et al.
    A combination of electron microscopic reconstruction and the analysis of single cell transcriptome data is used to reconstruct synaptic and peptidergic signaling networks in a neurosecretory centre.
    1. Neuroscience

    Inter-individual stereotypy of the Platynereis larval visual connectome

    Nadine Randel et al.
    Building on previous work (Randel et al., 2014), a comparison of the visual neuronal circuitry in two Platynereis larvae, made using serial electron microscopic reconstructions, reveals a high level of stereotypy in the synaptic connectivity.
    1. Ecology
    2. Neuroscience

    Combined transcriptome and proteome profiling reveals specific molecular brain signatures for sex, maturation and circalunar clock phase

    Sven Schenk et al.
    A molecular profiling approach to quantify transcripts and proteins from identical samples allows study of molecular effects of maturation, sexual differentiation and the endogenous circalunar clock in a marine worm.
    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

    A serial multiplex immunogold labeling method for identifying peptidergic neurons in connectomes

    Réza Shahidi et al.
    A new technique called ‘siGOLD’ allows neural circuits to be mapped using a combination of antibody labeling and electron microscopy.
    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. Neuroscience

    Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton

    Csaba Verasztó et al.
    In a zooplankton larva, ciliary and rhabdomeric photoreceptor cells work antagonistically to form a spectral depth gauge.
    1. Neuroscience

    Ciliomotor circuitry underlying whole-body coordination of ciliary activity in the Platynereis larva

    Csaba Verasztó et al.
    Connectomic reconstruction combined with activity imaging uncovered a rhythmically active neuronal circuit for the coordination of ciliary activity across the whole body of a marine larva.
    1. Neuroscience

    Neuronal connectome of a sensory-motor circuit for visual navigation

    Nadine Randel et al.
    Three-dimensional mapping of the neural circuitry that controls movement of a marine worm in response to light provides insights into the evolution of complex visual systems.

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