38 results found
    1. Developmental Biology

    A branched heterochronic pathway directs juvenile-to-adult transition through two LIN-29 isoforms

    Chiara Azzi et al.
    Distinct regulation endows two isoforms of the transcription factor LIN-29 with distinct functions to achieve coordinated execution of separate juvenile-to-adult transition events in Caenorhabditis elegans..
    1. Stem Cells and Regenerative Medicine

    A network of heterochronic genes including Imp1 regulates temporal changes in stem cell properties

    Jinsuke Nishino et al.
    A set of genes that are turned on only within time-limited windows—including genes encoding RNA binding molecules, let-7 microRNAs and IMP1—control developmental switches in stem cell properties between fetal development and adulthood.
    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. Developmental Biology

    CED-3 caspase acts with miRNAs to regulate non-apoptotic gene expression dynamics for robust development in C. elegans

    Benjamin P Weaver et al.
    A broadly used gene expression regulatory mechanism inactivates targets by CED-3-caspase-mediated proteolysis and works in parallel to miRNAs for diverse non-apoptotic developmental functions.
    1. Developmental Biology

    Development: Cell death machinery makes life more robust

    Cristina Aguirre-Chen, Christopher M Hammell
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    1. Developmental Biology
    2. Neuroscience

    How prolonged expression of Hunchback, a temporal transcription factor, re-wires locomotor circuits

    Julia L Meng et al.
    In vivo stem cell reprogramming in the well-studied stem cell NB7-1 using the classic temporal transcription factor Hunchback increases motor neuron number and re-specifies dendritic morphology and neuromuscular synaptic partnerships.
    1. Neuroscience

    Sexual Differentiation: A matter of timing

    Michael W Perry, Claude Desplan
    A genetic pathway involved in development works together with the sex-determination pathway to control the timing of sexually dimorphic neural development in C. elegans.
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    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

    Lin28a/let-7 pathway modulates the Hox code via Polycomb regulation during axial patterning in vertebrates

    Tempei Sato et al.
    Genetic analyses reveal that the loss of Lin28a causes axial shortening with mild skeletal transformations via decreased PRC1 at Hox genes, establishing a new pathway in the “Hox code.”.
    1. Developmental Biology

    Species-specific maturation profiles of human, chimpanzee and bonobo neural cells

    Maria C Marchetto et al.
    Using iPSCs as a model to study neurodevelopmental differences between human and nonhuman primates lays the groundwork for understanding aspects of human brain evolution and neurological disease susceptibility.

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