19 results found
    1. Evolutionary Biology

    The last common ancestor of animals lacked the HIF pathway and respired in low-oxygen environments

    Daniel B Mills et al.
    Sponges and ctenophores lack hypoxia-inducible factors, suggesting that the metazoan last common ancestor could have lived aerobically under severe hypoxia and did not need to regulate its transcription in response to oxygen availability.
    1. Evolutionary Biology

    Evolution: Oxygen and early animals

    Kalle T Rytkönen
    The biology of sponges provides clues about how early animals may have dealt with low levels of oxygen.
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    1. Biochemistry and Chemical Biology

    Point of View: How open science helps researchers succeed

    Erin C McKiernan et al.
    Open research practices bring significant benefits to researchers.
    1. Developmental Biology
    2. Evolutionary Biology

    Germ layer-specific regulation of cell polarity and adhesion gives insight into the evolution of mesoderm

    Miguel Salinas-Saavedra et al.
    The expression of 'bilaterian-mesodermal’ genes changes the epithelial properties of the endomesoderm during the embryogenesis of the cnidarian Nematostella vectensis.
    1. Ecology
    2. Evolutionary Biology

    Comparative genomics explains the evolutionary success of reef-forming corals

    Debashish Bhattacharya et al.
    The analysis of 20 coral genomic datasets provides unprecedented insights into what makes reef-building corals unique, including the evolution of novel gene families involved in biomineralization, signaling and stress responses that have led to their evolutionary success throughout the Phanerozoic Eon.
    1. Developmental Biology
    2. Evolutionary Biology

    Molecular insights into the origin of the Hox-TALE patterning system

    Bruno Hudry et al.
    Interactions between Hox and TALE genes, which generate bilaterally symmetrical body plans, originated in early multicellular animals.
    1. Developmental Biology
    2. Evolutionary Biology

    Landscape of histone modifications in a sponge reveals the origin of animal cis-regulatory complexity

    Federico Gaiti et al.
    The complex chromatin-based genomic regulatory system controlling developmental gene expression in complex bilaterians predates the evolution of morphological complexity and may have been a prerequisite for the evolution of the first simple multicellular animals.
    1. Stem Cells and Regenerative Medicine

    Conserved functional antagonism of CELF and MBNL proteins controls stem cell-specific alternative splicing in planarians

    Jordi Solana et al.
    A conserved alternative splicing program is specific to planarian stem cells and is controlled by the highly conserved splicing factors CELF and MBNL; therefore, this mode of regulating stem cells is likely ancestral to all animals.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Dynamics of genomic innovation in the unicellular ancestry of animals

    Xavier Grau-Bové et al.
    The foundations of genomic complexity in multicellular animals have deep roots in their unicellular prehistory, both in terms of innovations in gene content, as well as the evolutionary dynamics of genome architecture.
    1. Cell Biology
    2. Developmental Biology

    Ingression-type cell migration drives vegetal endoderm internalisation in the Xenopus gastrula

    Jason WH Wen, Rudolf Winklbauer
    The cellular behaviours that underlie the internalization of the multilayered endoderm anlage in Xenopus laevis link the ancestral mode of vertebrate gastrulation to common, epithelial-based mechanisms of gastrulation in non-vertebrate animals.

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