622 results found
    1. Evolutionary Biology

    Decreased recent adaptation at human mendelian disease genes as a possible consequence of interference between advantageous and deleterious variants

    Chenlu Di et al.
    Harmful genetic variants at mendelian disease genes slow down adaptation, by interfering with the spread of adaptive variants in a population.
    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. Epidemiology and Global Health

    The effects of a deleterious mutation load on patterns of influenza A/H3N2's antigenic evolution in humans

    Katia Koelle, David A Rasmussen
    Deleterious mutations slow down flu's antigenic evolution, make it more punctuated in nature, and reduce the virus's genetic diversity.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Within-host evolutionary dynamics of seasonal and pandemic human influenza A viruses in young children

    Alvin X Han et al.
    The longer duration of seasonal influenza virus infection in young children may provide opportunities for within-host evolution as a result of maintenance of genetic diversity through mutation-selection balance.
    1. Genetics and Genomics

    Single-amino acid variants reveal evolutionary processes that shape the biogeography of a global SAR11 subclade

    Tom O Delmont et al.
    An in-depth metagenomic analysis of possibly the most abundant and widespread microbial lineage in the surface ocean teases apart evolutionary processes that maintain its genomic heterogeneity and biogeography.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Principles of dengue virus evolvability derived from genotype-fitness maps in human and mosquito cells

    Patrick T Dolan et al.
    Distinct selective landscapes in mosquito and human cells shape dengue virus genetic diversity and highlight mechanisms of host adaptation in arboviruses.
    1. Genetics and Genomics
    2. Medicine

    Association of Toll-like receptor 7 variants with life-threatening COVID-19 disease in males: findings from a nested case-control study

    Chiara Fallerini et al.
    In the context of susceptibility to severe COVID-19, the observations of a study provide the basis for a personalized interferon-based therapy in patients with rare TLR7 variants.
    1. Evolutionary Biology
    2. Genetics and Genomics

    The distribution of fitness effects among synonymous mutations in a gene under directional selection

    Eleonore Lebeuf-Taylor et al.
    Synonymous mutations can have highly variable fitness effects stemming from changes in transcription, some of which contribute to adaptation.
    1. Chromosomes and Gene Expression

    An ancient germ cell-specific RNA-binding protein protects the germline from cryptic splice site poisoning

    Ingrid Ehrmann et al.
    Cell division by meiosis during sperm production depends on expression of an RNA-binding protein that prevents abnormal RNA-processing pathways.
    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.

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