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    1. Developmental Biology

    Maternal Gdf3 is an obligatory cofactor in Nodal signaling for embryonic axis formation in zebrafish

    Brent W Bisgrove et al.
    Maternal Gdf3 and Nodal are interdependent obligatory cofactors in the fundamental patterning of the vertebrate embryonic axis of zebrafish.
    1. Developmental Biology

    The transcription factor Pitx2 positions the embryonic axis and regulates twinning

    Angela Torlopp et al.
    In higher vertebrates, the position of the embryonic axis (the location at which gastrulation starts) is determined by the transcription factor Pitx2, which suggests that the mechanisms of this process, and hence those that regulate twinning, are related to those that set up the left–right axis.
    1. Computational and Systems Biology
    2. Developmental Biology

    Unipolar distributions of junctional Myosin II identify cell stripe boundaries that drive cell intercalation throughout Drosophila axis extension

    Robert J Tetley et al.
    Analysing Myosin II unipolar planar polarisation with high spatial and temporal resolution during Drosophila axis extension reveals how tissue boundaries drive polarized cell intercalation while limiting cell mixing.
    1. Cell Biology
    2. Developmental Biology

    Lineage commitment of embryonic cells involves MEK1-dependent clearance of pluripotency regulator Ventx2

    Pierluigi Scerbo et al.
    Degradation and asymmetric inheritance during cell division of a core pluripotency regulator contributes to lineage commitment in the early Xenopus embryo.
    1. Developmental Biology

    Dynamic BMP signaling polarized by Toll patterns the dorsoventral axis in a hemimetabolous insect

    Lena Sachs et al.
    During the evolution of insect lineages, a signaling pathway dedicated to pathogen defense was co-opted for a new role in embryonic patterning.
    1. Developmental Biology

    Extracellular interactions and ligand degradation shape the nodal morphogen gradient

    Yin Wang et al.
    Diffusivity, extracellular interactions of Nodal ligands with the receptors and inhibitors, and selective ligand destruction collectively shape the Nodal morphogen gradient.
    1. Developmental Biology

    Local cell interactions and self-amplifying individual cell ingression drive amniote gastrulation

    Octavian Voiculescu et al.
    A combination of two local cell interactions, intercalation and ingression amplified by a community-effect, is sufficient to explain the global movements of amniote gastrulation.
    1. Developmental Biology

    Response to Nodal morphogen gradient is determined by the kinetics of target gene induction

    Julien Dubrulle et al.
    A kinetic model of morphogen interpretation is more suitable than classic threshold or ratchet models to understand how a signal gradient generates different target gene expression patterns.
    1. Developmental Biology
    2. Evolutionary Biology

    A SoxB gene acts as an anterior gap gene and regulates posterior segment addition in a spider

    Christian Louis Bonatto Paese et al.
    Sox21b-1 regulates simultaneous formation of anterior segments and addition of posterior segments in a spider, which resembles segmentation in long- and short-germ insects, and suggests SoxB regulation of segmentation is an ancestral feature of arthropods.
    1. Developmental Biology
    2. Physics of Living Systems

    Gene-free methodology for cell fate dynamics during development

    Francis Corson, Eric D Siggia
    Mathematical methods based on geometry that directly embody the developmental concepts of competency, commitment, and determination provide succinct descriptions of morphogenesis and allow quantitative predictions from fits to sparse genetic data in Caenorhabditis elegans.