5,645 results found
    1. Physics of Living Systems

    A mechanism for hunchback promoters to readout morphogenetic positional information in less than a minute

    Jonathan Desponds et al.
    Maternal positional information in the fly embryo can be read rapidly in spite of the gene-expression bottleneck and general examples of regulatory architectures that combine speed and accuracy are provided.
    1. Developmental Biology
    2. Evolutionary Biology

    A shift in anterior–posterior positional information underlies the fin-to-limb evolution

    Koh Onimaru et al.
    A shift in antero-posterior positional information may contribute to the fin-to-limb transformation.
    1. Stem Cells and Regenerative Medicine

    Positional information specifies the site of organ regeneration and not tissue maintenance in planarians

    Eric M Hill, Christian P Petersen
    Homeostatic tissue maintenance can occur at locations distinct from the target sites of organ regeneration planarians.
    1. Computational and Systems Biology
    2. Developmental Biology

    The dynamic transmission of positional information in stau- mutants during Drosophila embryogenesis

    Zhe Yang et al.
    In stau-mutants, the Hunchback boundary shifts posteriorly by 10% EL but shows comparable variability to that of the wild type in short time windows in nuclear cycle 14.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Progenitors oppositely polarize WNT activators and inhibitors to orchestrate tissue development

    Irina Matos et al.
    Progenitors establish a single-cell length WNT morphogen gradient to transmit signals directionally and differentially to neighbors.
    1. Stem Cells and Regenerative Medicine

    Nuclear receptor NR4A is required for patterning at the ends of the planarian anterior-posterior axis

    Dayan J Li et al.
    NR4A is a broadly conserved transcription factor that is required for concordance of patterning information and anatomy at both ends of the planarian anterior-posterior axis.
    1. Developmental Biology

    Cellular resolution models for even skipped regulation in the entire Drosophila embryo

    Garth R Ilsley et al.
    A statistical model is able to predict patterns of gene expression output in Drosophila embryos using only the cellular concentrations of transcription factors as input.
    1. Computational and Systems Biology
    2. Neuroscience

    Tuning movement for sensing in an uncertain world

    Chen Chen et al.
    Animals work in a world full of surprises, where using energy to position sensors proportional to the location's expected information avoids the pitfalls of positioning them at the information maxima.
    1. Neuroscience

    Local processing in neurites of VGluT3-expressing amacrine cells differentially organizes visual information

    Jen-Chun Hsiang et al.
    Neurite arbors of VGluT3-expressing amacrine cells (VG3-ACs) process visual information locally uniformly detecting object motion while varying in contrast preferences; and in spite of extensive overlap between arbors of neighboring cells population activity in the VG3-AC plexus encodes stimulus positions with subcellular precision.
    1. Computational and Systems Biology
    2. Neuroscience

    A molecular mechanism for the topographic alignment of convergent neural maps

    Elise Savier et al.
    Retinal ephrin-As gradients provide positional information, through retino-collicular map in the superior colliculus, for topographic alignment of cortico-collicular projections.

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