21 results found
    1. Plant Biology

    Convergent recruitment of TALE homeodomain life cycle regulators to direct sporophyte development in land plants and brown algae

    Alok Arun, Susana M Coelho ... J Mark Cock
    TALE homeodomain transcription factors have been independently recruited to regulate gametophyte to sporophyte transitions in two complex multicellular eukaryotic supergroups, land plants in Archaeplastida and brown algae in Chromalveolata.
    1. Developmental Biology
    2. Evolutionary Biology

    Gamete expression of TALE class HD genes activates the diploid sporophyte program in Marchantia polymorpha

    Tom Dierschke, Eduardo Flores-Sandoval ... John L Bowman
    The ancestral mechanism to activate diploid gene expression via homeodomain transcription factors was retained in liverworts, an early diverging land plant lineage, and subsequently co-opted during evolution of the diploid sporophyte body.
    1. Developmental Biology
    2. Evolutionary Biology

    Deep evolutionary origin of gamete-directed zygote activation by KNOX/BELL transcription factors in green plants

    Tetsuya Hisanaga, Shota Fujimoto ... Keiji Nakajima
    Gamete-derived three-amino-acid-loop-extension homeodomain proteins activate zygote development in a strikingly similar manner between basal land plants and green algae, indicating an ancestral role of these transcription factors in green plants.
    1. Developmental Biology
    2. Neuroscience

    Touch receptor end-organ innervation and function require sensory neuron expression of the transcription factor Meis2

    Simon Desiderio, Frederick Schwaller ... Frederic Marmigere
    Combining mouse genetic, behavioral, and electrophysiological approaches revealed that a transcription factor is required to shape touch neurons' distal projections in the skin while dispensable for their survival and specification.
    1. Developmental Biology

    Pitx2c orchestrates embryonic axis extension via mesendodermal cell migration

    Michelle M Collins, Hans-Martin Maischein ... Didier YR Stainier
    Expression of Pitx2c at the onset of gastrulation drives convergence and extension movements in the zebrafish embryo by promoting downstream pathways affecting chemokine signaling, integrin-ECM interactions, and planar cell polarity components.
    1. Developmental Biology
    2. Evolutionary Biology

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

    Bruno Hudry, Morgane Thomas-Chollier ... Samir Merabet
    Interactions between Hox and TALE genes, which generate bilaterally symmetrical body plans, originated in early multicellular animals.
    1. Developmental Biology

    TALE factors use two distinct functional modes to control an essential zebrafish gene expression program

    Franck Ladam, William Stanney ... Charles G Sagerström
    TALE transcription factors bind different genomic motifs and function together with different protein partners at different stages of zebrafish embryogenesis.
    1. Developmental Biology

    Hox genes control vertebrate body elongation by collinear Wnt repression

    Nicolas Denans, Tadahiro Iimura, Olivier Pourquié
    The collinear activation of a subset of posterior Hox genes is responsible for establishing a Wnt/T activity gradient that is required to generate the complete body axis, and hence the full set of segments within a vertebrate embryo.
    1. Developmental Biology

    Hox-dependent coordination of mouse cardiac progenitor cell patterning and differentiation

    Sonia Stefanovic, Brigitte Laforest ... Stephane Zaffran
    Discovering that Hoxb1 acts as a repressor of cardiac differentiation on second heart field progenitor cells helps us to understand the etiology of congenital heart defects such as atrioventricular septal defects.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    The splicing regulator PTBP1 controls the activity of the transcription factor Pbx1 during neuronal differentiation

    Anthony J Linares, Chia-Ho Lin ... Douglas L Black
    The RNA binding protein PTBP1 controls an extensive program of alternative splicing in embryonic stem cells, one function of which is to repress neuronal transcriptional programs.

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