10 results found
    1. Evolutionary Biology

    Neurocranial anatomy of an enigmatic Early Devonian fish sheds light on early osteichthyan evolution

    Alice M Clement et al.
    Stunning new scan data of an enigmatic fish from the Early Devonian of Australia, Ligulalepis, is identified as a stem osteichthyan, specifically, as the sister taxon to the 'psarolepids' plus crown osteichthyans.
    1. Evolutionary Biology

    A Bayesian approach to dynamic homology of morphological characters and the ancestral phenotype of jawed vertebrates

    Benedict King, Martin Rücklin
    The ancestor of all known jawed vertebrates possessed a maxilla and premaxilla and was similar in morphology to the 'maxillate placoderms' from China.
    1. Evolutionary Biology

    The developmental relationship between teeth and dermal odontodes in the most primitive bony fish Lophosteus

    Donglei Chen et al.
    Teeth and dermal odontodes diverge from the same set of founder odontodes, demonstrating they are modified subsets of the same system, and both oral and dermal epithelial have patterning capacity.
    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

    Secondary ossification center induces and protects growth plate structure

    Meng Xie et al.
    The principle underlying the appearance of the growth plate, an organ responsible for longitudinal growth, has implications for various cartilage pathologies including growth abnormalities in children, trauma and osteoarthritis.
    1. Developmental Biology
    2. Evolutionary Biology

    Evolution of the head-trunk interface in tetrapod vertebrates

    Elizabeth M Sefton et al.
    Both gill musculature and the evolutionarily conserved cucullaris muscle are derived from unsegmented mesoderm adjacent to the first 3 somites, extending the posterior limit of cranial mesoderm.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Regulation by the quorum sensor from Vibrio indicates a receptor function for the membrane anchors of adenylate cyclases

    Stephanie Beltz et al.
    A canonical class III adenylate cyclase with a membrane anchor of six transmembrane spans is regulated by a receptor of similar design, the quorum-sensing receptor from Vibrio harveyi.
    1. Developmental Biology
    2. Evolutionary Biology

    Resolving homology in the face of shifting germ layer origins: Lessons from a major skull vault boundary

    Camilla S Teng et al.
    Homology of vertebrate skull structures should be based on evolutionary continuity and an appreciation of germ layer origins and inductive signaling in the embryonic head.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Functional trade-offs and environmental variation shaped ancient trajectories in the evolution of dim-light vision

    Gianni M Castiglione, Belinda SW Chang
    The evolution of the light-sensitive visual pigment rhodopsin involved functional tradeoffs that may have sacrificed rod photosensitivity for active-state protein stability to mitigate phototoxicity in tetrapods, but not in fishes.
    1. Evolutionary Biology
    Paleontology

    Paleontology: A Collection of Articles

    Edited by Ian Baldwin et al.
    eLife has published papers on topics as diverse as paleoproteomics, ancient insects and the discovery of a new hominin species.

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