24 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. Ecology
    2. Evolutionary Biology

    Lichen mimesis in mid-Mesozoic lacewings

    Hui Fang et al.
    The earliest fossil evidence of a mimetic relationship between the Jurassic moth lacewing Lichenipolystoechotes and its co-occurring fossil lichen Daohugouthallus predates modern lichen-insect associations by 165 million years.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Drought adaptation in Arabidopsis thaliana by extensive genetic loss-of-function

    J Grey Monroe et al.
    Gene knockouts provide valuable genetic fuel for climate adaptation in nature.
    1. Evolutionary Biology

    Preservation of three-dimensional anatomy in phosphatized fossil arthropods enriches evolutionary inference

    Achim H Schwermann et al.
    X-ray imaging reveals well-preserved internal characters in mineralized arthropods from the Paleogene, urging the reexamination of previously neglected fossil collections.
    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. Developmental Biology
    2. Evolutionary Biology

    Bichir external gills arise via heterochronic shift that accelerates hyoid arch development

    Jan Stundl et al.
    Unique heterochrony in the cranial segments in bichirs triggers the early formation of their external gills, and might be informative about developmental mechanisms facilitating increased breathing capacity.
    1. Ecology

    Symbiosis: Algae and fungi move from the past to the future

    Paola Bonfante
    The ability of photosynthetic algae to enter the hyphae of a soil fungus could tell us more about the evolution of these species.
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    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. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Cretaceous dinosaur bone contains recent organic material and provides an environment conducive to microbial communities

    Evan T Saitta et al.
    Subterranean fossil bone hosts a living microbiome different from the surrounding sediment without evidence of original protein preservation.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The multi-subunit GID/CTLH E3 ubiquitin ligase promotes cell proliferation and targets the transcription factor Hbp1 for degradation

    Fabienne Lampert et al.
    Proteomic, biochemical and cell-based analyses of the heterodecameric core GID/CTLH E3 ligase complex reveal its molecular architecture, activity determinants, and function in targeting the tumor suppressor Hbp1 and other substrates required for cell proliferation.

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