18 results found
    1. Evolutionary Biology

    Neuropeptide Signaling: Unravelling the evolutionary history of kisspeptin

    Maria I Arnone, Paola Oliveri
    Experiments in sea cucumbers reveal how the physiological responses regulated by a neuropeptide called kisspeptin have evolved.
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    1. Evolutionary Biology

    Existence and functions of a kisspeptin neuropeptide signaling system in a non-chordate deuterostome species

    Tianming Wang et al.
    Identification and functional characterization of the first non-chordate kisspeptin neuropeptide system in the sea cucumber indicates the ancient origin of the intracellular signaling and physiological functions of this molecular system.
    1. Biochemistry and Chemical Biology

    An explanation for origin unwinding in eukaryotes

    Lance D Langston, Michael E O'Donnell
    CMG helicase translocates with force while encircling duplex DNA, enabling two opposing CMG complexes at an origin to melt the duplex and switch to encircling separate single strands.
    1. Developmental Biology
    2. Evolutionary Biology

    Functional divergence of paralogous transcription factors supported the evolution of biomineralization in echinoderms

    Jian Ming Khor, Charles A Ettensohn
    A gene duplication event has permitted the functional specialization of a homeodomain transcription factor through changes in exon-intron organization and these changes have supported the evolution of a major, phylum-level morphological novelty.
    1. Genetics and Genomics

    High-resolution mapping reveals hundreds of genetic incompatibilities in hybridizing fish species

    Molly Schumer et al.
    Genetic incompatibilities are common and widely distributed throughout the genomes of swordtail fish, and prevent the regions of the genome around them from being exchanged between different species.
    1. Genetics and Genomics
    2. Stem Cells and Regenerative Medicine

    Cell-type diversity and regionalized gene expression in the planarian intestine

    David J Forsthoefel et al.
    Application of laser-capture microdissection to planarian intestinal tissue provides a new tool for analysis of tissue-specific gene expression in flatworms, and a new resource to advance investigations of gastrointestinal regeneration.
    1. Cell Biology
    2. Plant Biology

    The GluTR-binding protein is the heme-binding factor for feedback control of glutamyl-tRNA reductase

    Andreas S Richter et al.
    Heme-dependent feedback inhibition of rate-limiting ALA-synthesis of plant tetrapyrrole biosynthesis depends on binding of heme to glutamyl-tRNA reductase-binding protein.
    1. Plant Biology

    Arabidopsis formin 2 regulates cell-to-cell trafficking by capping and stabilizing actin filaments at plasmodesmata

    Min Diao et al.
    Cytological and biochemical analyses reveal Arabidopsis formin 2 is involved in regulating PD permeability by anchoring actin filaments to PD and stabilizing them through actin filament barbed end capping activity.
    1. Cell Biology
    2. Evolutionary Biology

    The regulation of oocyte maturation and ovulation in the closest sister group of vertebrates

    Shin Matsubara et al.
    Oocyte maturation and ovulation in the sister group of vertebrates, Ciona intestinalis Type A, are triggered by Ci-VP, the Ciona homolog of a typical neruopeptide, vasopressin.
    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.

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