1,275 results found
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Predictable properties of fitness landscapes induced by adaptational tradeoffs

    Suman G Das et al.
    Adaptational tradeoffs constrain the evolutionary pathways towards antimicrobial resistance, but highly fit mutants are nevertheless likely to arise at any concentration of the drug.
    1. Ecology
    2. Plant Biology

    Natural genetic variation in Arabidopsis thaliana defense metabolism genes modulates field fitness

    Rachel Kerwin et al.
    Environmental heterogeneity may contribute to the high levels of genetic variation in glucosinolate genes found in Arabidopsis thaliana.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Comprehensive fitness maps of Hsp90 show widespread environmental dependence

    Julia M Flynn et al.
    Environmental conditions strongly impact the fitness effects of Hsp90, resulting in the selection of Hsp90 sequences in nature that are robust to a variety of stressful conditions.
    1. Evolutionary Biology

    Changes to social feeding behaviors are not sufficient for fitness gains of the Caenorhabditis elegans N2 reference strain

    Yuehui Zhao et al.
    Use of experimental manipulation demonstrates that social/solitary feeding behaviors are unrelated to the fitness gains conferred by causative alleles in two previously identified genes.
    1. Evolutionary Biology

    Fitness effects of altering gene expression noise in Saccharomyces cerevisiae

    Fabien Duveau et al.
    The impact of changing gene expression noise on fitness reveals beneficial or deleterious effects in a stable environment depending how close the average expression level is to the fitness optimum.
    1. Evolutionary Biology

    Adaptation in protein fitness landscapes is facilitated by indirect paths

    Nicholas C Wu et al.
    The extra dimensions in protein sequence space open up indirect paths of adaptation and alleviate the constraint on the selective accessibility to high fitness genotypes.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Fitness benefits in fluoroquinolone-resistant Salmonella Typhi in the absence of antimicrobial pressure

    Stephen Baker et al.
    The major evolutionary routes to drug resistance in Salmonella Typhi are associated with fitness benefits, not fitness costs, implying that prudent antimicrobial use will have no effect as a public health intervention in controlling typhoid fever.
    1. Cancer Biology
    2. Genetics and Genomics

    Genome-wide CRISPR screens of oral squamous cell carcinoma reveal fitness genes in the Hippo pathway

    Annie Wai Yeeng Chai et al.
    Genome-wide CRISPR/Cas9 screens enable the identification of actionable vulnerabilities of oral squamous cell carcinoma, and their unique dependencies on YAP1 and WWTR1 of the Hippo pathway.
    1. Evolutionary Biology

    Fitness variation across subtle environmental perturbations reveals local modularity and global pleiotropy of adaptation

    Grant Kinsler et al.
    A set of adaptive mutations affect only a small number of phenotypes that matter in the evolution condition, and yet contain substantial latent functional diversity revealed in distant environments.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Symbiont location, host fitness, and possible coadaptation in a symbiosis between social amoebae and bacteria

    Longfei Shu et al.
    Morphological and fitness defects imposed on amoebae hosts by Burkholderia symbionts demonstrates symbiont species-specific effects and provides evidence of host adaptation to naturally acquired symbionts.

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