65 results found
    1. Evolutionary Biology
    2. Physics of Living Systems

    Evolution of irreversible somatic differentiation

    Yuanxiao Gao et al.
    Irreversible differentiation into somatic cells is evolutionarily optimal if changing cell phenotype is costly, a few somatic cells already improve the organism's performance, and the organism is large enough.
    1. Evolutionary Biology
    2. Genetics and Genomics

    A modified fluctuation assay reveals a natural mutator phenotype that drives mutation spectrum variation within Saccharomyces cerevisiae

    Pengyao Jiang et al.
    Certain mutational signatures vary in their contribution to genetic variation across the yeast phylogeny due to genetically encoded natural mutator phenotypes whose activity can be directly measured in the lab.
    1. Evolutionary Biology
    2. Genetics and Genomics

    The whale shark genome reveals patterns of vertebrate gene family evolution

    Milton Tan et al.
    The new whale shark genome assembly represents the best gapless chondrichthyan genome assembly yet, and comparative genomic analyses provide insights into the evolution of vertebrate genome origins, immunity, and gigantism.
    1. Neuroscience

    Urocortin-3 neurons in the mouse perifornical area promote infant-directed neglect and aggression

    Anita E Autry et al.
    Genetic and functional manipulations uncover urocortin-3-expressing neurons in the perifornical area of the hypothalamus as a dedicated circuit component for the expression of infant-directed neglect and aggression in mice.
    1. Ecology
    2. Microbiology and Infectious Disease

    Niche partitioning facilitates coexistence of closely related honey bee gut bacteria

    Silvia Brochet et al.
    Experiments in gnotobiotic bees and culture tubes can recapitulate gut microbiota coexistence patterns observed in nature.
    1. Cancer Biology
    2. Cell Biology

    CXCL10/CXCR3 signaling contributes to an inflammatory microenvironment and its blockade enhances progression of murine pancreatic precancerous lesions

    Veethika Pandey et al.
    Blockage of CXCL10/CXCR3 signaling between murine pancreatic precancerous lesion cells and inflammatory macrophages generates a tumor-promoting microenvironment.
    1. Epidemiology and Global Health

    Efficacy profile of the CYD-TDV dengue vaccine revealed by Bayesian survival analysis of individual-level phase III data

    Daniel J Laydon et al.
    Bayesian survival analysis reveals comprehensive efficacy profile and mechanism of action for Sanofi-Pasteur’s CYD-TDV dengue vaccine, whereby vaccination acts as a silent, disease-free infection enhancing disease risk in seronegatives, but giving greater immunity in seropositives than two natural infections.
    1. Cell Biology
    2. Developmental Biology

    Dynamics of primitive streak regression controls the fate of neuromesodermal progenitors in the chicken embryo

    Charlene Guillot et al.
    Inverse gradients of cell ingression and division in the epiblast allow the bipotent progenitors in the anterior streak to become the main progenitors for posterior axis formation from the tail bud.
    1. Evolutionary Biology

    Myoglobin primary structure reveals multiple convergent transitions to semi-aquatic life in the world's smallest mammalian divers

    Kai He et al.
    Ancestral sequence reconstruction of an essential muscle protein involved in oxygen storage and transport accurately tracks secondary aquatic transitions in a speciose clade of insectivorous mammals.
    1. Neuroscience

    Midbrain dopaminergic inputs gate amygdala intercalated cell clusters by distinct and cooperative mechanisms in male mice

    Ayla Aksoy-Aksel et al.
    Dopaminergic input shapes activity of specialized amygdala inhibitory cell clusters by ionotropic and metabotropic mechanisms that may enable their selection during distinct fear-related behavioral states.

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