915 results found
    1. Evolutionary Biology
    2. Genetics and Genomics

    The evolutionary plasticity of chromosome metabolism allows adaptation to constitutive DNA replication stress

    Marco Fumasoni, Andrew W Murray
    Evolutionary adaptation to a constitutive perturbation of DNA replication reveals that adaptive mutations in three conserved pathways interact to restore faithful chromosome replication and segregation.
    1. Biochemistry and Chemical Biology

    Evolutionary and functional insights into the mechanism underlying body-size-related adaptation of mammalian hemoglobin

    Olga Rapp, Ofer Yifrach
    Hemoglobin affinity and cooperativity reveal mechanistic insights in how the relation between physiology and evolutionary variations shape a protein's molecular property.
    1. Cell Biology
    2. Evolutionary Biology

    Evolutionary adaptation after crippling cell polarization follows reproducible trajectories

    Liedewij Laan et al.
    Deletion of one gene can lead to inactivation of other genes which restore a perturbed cellular function but change the epistatic interactions and the dynamics of the responsible module.
    1. Neuroscience

    Neuroanatomy of a hydrothermal vent shrimp provides insights into the evolution of crustacean integrative brain centers

    Julia Machon et al.
    A neuroanatomical analysis of Rimicaris exoculata provides insights into these animal’s brain architecture to illustrate possible adaptations to the hydrothermal vent habitat with its extreme physicochemical conditions.
    1. Evolutionary Biology

    Fine-tuning citrate synthase flux potentiates and refines metabolic innovation in the Lenski evolution experiment

    Erik M Quandt et al.
    A long-term evolution experiment with Escherichia coli shows that the appearance and optimization of a new trait can require both co-opting existing cellular pathways for new roles and reversing a history of previous adaptation.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Adaptation to mutational inactivation of an essential gene converges to an accessible suboptimal fitness peak

    João V Rodrigues, Eugene I Shakhnovich
    When an essential metabolic gene in E. coli is mutationally inactivated, subsequent evolution rarely reverts the mutation to wild type but rather follows unexpected paths that rewire metabolic fluxes.
    1. Evolutionary Biology

    Privatisation rescues function following loss of cooperation

    Sandra Breum Andersen et al.
    A population of pathogenic bacteria is found to respond to the loss of cooperation by privatising an essential function.
    1. Computational and Systems Biology

    Evolved bacterial resistance against fluoropyrimidines can lower chemotherapy impact in the Caenorhabditis elegans host

    Brittany Rosener et al.
    Bacterial evolutionary adaptation to two chemotherapy drugs can lead to changes in bacterial metabolism and impact drug toxicity in a worm host.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Genomic and phenotypic evolution of Escherichia coli in a novel citrate-only resource environment

    Zachary D Blount et al.
    Transposable elements and gene amplifications can provide variation needed for novel trait refinement and adaptation to new niches, though a recalcitrant organism-environment mismatch may persist.
    1. Ecology

    How will mosquitoes adapt to climate warming?

    Lisa I Couper et al.
    Mosquitoes may be likely to adapt to climate warming given their short life cycles and strong temperature sensitivity, but key data gaps identified here constrain current estimates of adaptive potential.

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