237 results found
    1. Developmental Biology
    2. Physics of Living Systems

    The proneural wave in the Drosophila optic lobe is driven by an excitable reaction-diffusion mechanism

    David J Jörg et al.
    A model of signalling pathways interacting with proneural gene expression explains the sequential patterning of the largest visual processing centre in the developing Drosophila brain.
    1. Developmental Biology
    2. Evolutionary Biology

    Patterning: Fishing for ancestry

    Hannah Brunsdon, E Elizabeth Patton
    The same genes and signalling pathways control the formation of skin appendages in both fish and land animals.
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    1. Developmental Biology
    2. Evolutionary Biology

    Evolution of Segmentation: Sox enters the picture

    Felix Kaufholz, Natascha Turetzek
    The discovery of a gene that regulates two segmentation mechanisms in spider embryos is fueling the ongoing debate about the evolution of this crucial developmental process.
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    1. Developmental Biology
    2. Neuroscience

    Developmental Neuroscience: Re-utilization of a transcription factor

    Filipe Pinto-Teixeira, Claude Desplan
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    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

    Growth-factor-mediated coupling between lineage size and cell fate choice underlies robustness of mammalian development

    Néstor Saiz et al.
    A mechanistic basis is provided for the regulative ability of the mammalian embryo offering a long-sought explanation for coordinating cell behaviors at the population level ensuring robustness in developmental outcome.
    1. Developmental Biology

    Geometric models for robust encoding of dynamical information into embryonic patterns

    Laurent Jutras-Dubé et al.
    Propagation, speed and shapes of genetic waves of expression during development can be modeled by a simple interplay between two transcriptional modules (dynamic/static), which explains robustness and precision of patterning.
    1. Developmental Biology
    2. Neuroscience

    Extrinsic activin signaling cooperates with an intrinsic temporal program to increase mushroom body neuronal diversity

    Anthony M Rossi, Claude Desplan
    The activin ligand myoglianin acts as a temporal extrinsic cue to regulate the intrinsic temporal factor Imp in mushroom body neuroblasts, increasing neuronal diversity by specifying the α’β’ fate.
    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. Developmental Biology
    2. Genetics and Genomics

    Odd-paired is a pioneer-like factor that coordinates with Zelda to control gene expression in embryos

    Theodora Koromila et al.
    The gene Odd-paired is a late-acting regulator of zygotic gene expression, functioning coordinately with Zelda to influence chromatin accessibility and affecting genes expressed along both axes of Drosophila embryos.

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