115 results found
    1. Evolutionary Biology

    New light shed on the early evolution of limb-bone growth plate and bone marrow

    Jordi Estefa et al.
    A three-dimensional investigation of extinct-tetrapod limbs shows that even though bone elongation and blood-cell production are intimately related to mammal long bones, these functions actually appeared successively in tetrapod evolution.
    1. Developmental Biology
    2. Evolutionary Biology

    Characterization of the finch embryo supports evolutionary conservation of the naive stage of development in amniotes

    Siu-Shan Mak et al.
    Finch embryos are laid at an earlier stage than other avian embryos and contain cells with similar properties to pluripotent embryonic stem cells from mice.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    High-resolution transcriptional and morphogenetic profiling of cells from micropatterned human ESC gastruloid cultures

    Kyaw Thu Minn et al.
    Micropatterned differentiation of human ESCs generates gastrulation cell types – germ layers, extraembryonic, and primordial germ cells with primate characteristics – that show conserved sorting behaviors when dissociated and reseeded as single-cell mixture.
    1. Developmental Biology
    2. Evolutionary Biology

    Two consecutive microtubule-based epithelial seaming events mediate dorsal closure in the scuttle fly Megaselia abdita

    Juan Jose Fraire-Zamora et al.
    Evolutionary reduction in tissue number involves the simplification of the seaming process but not signaling during epithelial fusion.
    1. Developmental Biology

    Cardiac neural crest contributes to cardiomyocytes in amniotes and heart regeneration in zebrafish

    Weiyi Tang et al.
    Lineage analysis reveals that cardiac neural crest contributes to cardiomyocytes across vertebrates and consistent with this, the neural crest gene regulatory program is reactivated upon heart regeneration in zebrafish.
    1. Neuroscience

    Non-thalamic origin of zebrafish sensory nuclei implies convergent evolution of visual pathways in amniotes and teleosts

    Solal Bloch et al.
    Mesencephalic origin of the zebrafish thalamocortical-like visual projection neurons indicates independent evolution of tectofugal visual pathways in amniotes and teleosts.
    1. Developmental Biology
    2. Evolutionary Biology

    Wnt/β-catenin regulates an ancient signaling network during zebrafish scale development

    Andrew J Aman et al.
    Zebrafish scales depend on interactions among Wnt, Ectodysplasin and Hedgehog signaling pathways similar to those underlying feathers, teeth and hair follicles, suggesting a deep homology of ectodermal appendages in vertebrates.
    1. Evolutionary Biology

    Evolution: Unraveling the history of limb bones

    Holly N Woodward
    Ancient fossils give clues as to when features of modern tetrapod bones emerged.
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    1. Developmental Biology
    2. Neuroscience

    Pioneer neurog1 expressing cells ingress into the otic epithelium and instruct neuronal specification

    Esteban Hoijman et al.
    Quantitative 4D image analysis identifies a group of cells which enter into the otic primordium during morphogenesis and instructs neuronal specification.
    1. Cell Biology
    2. Developmental Biology

    The transcription factor Rreb1 regulates epithelial architecture, invasiveness, and vasculogenesis in early mouse embryos

    Sophie M Morgani et al.
    Loss of the transcription factor Rreb1 results perturbs epithelial architecture during mouse development resulting in invasive cell behaviors, severe cardiovascular defects, and embryonic lethality.

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