378 results found
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Stochastic modelling, Bayesian inference, and new in vivo measurements elucidate the debated mtDNA bottleneck mechanism

    Iain G Johnston et al.
    New modelling, statistics, and experiments show that cellular populations of mitochondrial DNA (mtDNA) evolve during development according to solvable stochastic dynamics involving binomial partitioning and random turnover, facilitating a predictive and quantitative theory of the mtDNA bottleneck.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Stochastic processes constrain the within and between host evolution of influenza virus

    John T McCrone et al.
    An analysis of influenza viruses from naturally infected people suggests a tight transmission bottleneck and little positive selection within hosts.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Long-term balancing selection drives evolution of immunity genes in Capsella

    Daniel Koenig et al.
    Retention of genetic diversity at immune-related loci drives the pattern of genetic variation in selfing Capsella.
    1. Epidemiology and Global Health

    Improved characterisation of MRSA transmission using within-host bacterial sequence diversity

    Matthew D Hall et al.
    Reconstruction of transmission pathways of methicillin-resistant Staphylococcus aureus using multiple genomes per host reveals great variation in the size of the transmission bottleneck and limited evidence for body site/phylogeny association.
    1. Neuroscience

    Building a functional connectome of the Drosophila central complex

    Romain Franconville et al.
    The central complex, a highly conserved insect brain region important for navigation, is characterized by a high degree of recurrence and a sparseness of output pathways.
    1. Neuroscience

    Multiple decisions about one object involve parallel sensory acquisition but time-multiplexed evidence incorporation

    Yul HR Kang et al.
    When making two decisions about one object, two streams of information can be acquired in parallel but must be incorporated into the two decisions serially, consistent with a central bottleneck.
    1. Microbiology and Infectious Disease

    A dedicated diribonucleotidase resolves a key bottleneck for the terminal step of RNA degradation

    Soo-Kyoung Kim et al.
    RNA degradation is completed through specific intermediates, such as diribonucleotides, which must be removed from the cells by a specific enzyme.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Intra-species differences in population size shape life history and genome evolution

    David Willemsen et al.
    Population genetics in turquoise killifish wild populations reveals how small population size and genetic drift determine the accumulation of deleterious gene variants leading to short lifespan.
    1. Biochemistry and Chemical Biology

    Quantitative determinants of aerobic glycolysis identify flux through the enzyme GAPDH as a limiting step

    Alexander A Shestov et al.
    A new computational model of the Warburg Effect reveals that the rate-limiting step of glycolysis is variable, identifies new control mechanisms, and could help to predict the responses to targeting glycolysis to treat cancer.
    1. Neuroscience

    Variance predicts salience in central sensory processing

    Ann M Hermundstad et al.
    Psychophysical measures of human sensitivity to visual patterns reveal that the brain preferentially processes those features of stimuli that are more variable in the natural world.

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