48 results found
  1. October 2014

    Episode 15: October 2014

    In this episode we hear about influenza pandemics, eating too much, cannabis and the brain, HIV cure research, and the evolution of sea squirts.
    1. Developmental Biology
    2. Plant Biology

    A digital 3D reference atlas reveals cellular growth patterns shaping the Arabidopsis ovule

    Athul Vijayan et al.
    Deep imaging, machine-learning-based segmentation, and tissue annotation resulted in a developmental series of 3D digital ovules with cellular resolution allowing next-level analysis of the ontogenesis of this complex organ.
    1. Ecology

    Substantial near-infrared radiation-driven photosynthesis of chlorophyll f-containing cyanobacteria in a natural habitat

    Michael Kühl et al.
    Cyanobacteria with chlorophyll f show substantial near-infrared radiation-driven photosynthesis and can play an important role for primary production in endolithic, intertidal habitats.
    1. Developmental Biology

    An essential role for maternal control of Nodal signaling

    Pooja Kumari et al.
    Regulation of conserved Nodal factors by a maternal protein ensures that Nodal signaling is repressed until the appropriate time in embryonic development.
    1. Structural Biology and Molecular Biophysics

    Connexin26 hemichannels with a mutation that causes KID syndrome in humans lack sensitivity to CO2

    Louise Meigh et al.
    Building on previous work (Meigh et al., 2013) we show that A88V, a mutation in connexin26 (Cx26) that causes Keratitis-Ichthyosis-Deafness (KID) syndrome in humans, is linked to a lack of sensitivity to CO2 by Cx26 hemichannels.
    1. Developmental Biology
    2. Evolutionary Biology

    Wnt/β-catenin signaling is an evolutionarily conserved determinant of chordate dorsal organizer

    Iryna Kozmikova, Zbynek Kozmik
    Wnt/beta-catenin signaling is essential for the specification of dorsal cell fate in amphioxus, suggesting a common evolutionary origin for the formation of the dorsal organizer in chordates.
    1. Cell Biology
    2. Developmental Biology

    Notochord vacuoles absorb compressive bone growth during zebrafish spine formation

    Jennifer Bagwell et al.
    Live imaging and genetic analyses revealed that notochord vacuoles play a critical role in spine morphogenesis by absorbing vertebral bone growth, thus implicating notochord mechanics in congenital scoliosis.
    1. Genetics and Genomics
    2. Stem Cells and Regenerative Medicine

    Cell-type diversity and regionalized gene expression in the planarian intestine

    David J Forsthoefel et al.
    Application of laser-capture microdissection to planarian intestinal tissue provides a new tool for analysis of tissue-specific gene expression in flatworms, and a new resource to advance investigations of gastrointestinal regeneration.
    1. Developmental Biology
    2. Evolutionary Biology

    CRISPR knockouts reveal an endogenous role for ancient neuropeptides in regulating developmental timing in a sea anemone

    Nagayasu Nakanishi, Mark Q Martindale
    Analysis of the endogenous function of deeply conserved neuropeptides in sea anemones sheds light on a primitive role of nervous systems in modulating developmental timing.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Uncoupling evolutionary changes in DNA sequence, transcription factor occupancy and enhancer activity

    Pierre Khoueiry et al.
    Interspecies comparison of transcription factor occupancy during embryogenesis reveals potential co-operative relationships between factors and uncovers the inherent plasticity of developmental enhancers to overcome divergence in transcription factor occupancy.

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