1,069 results found
    1. Evolutionary Biology

    Host-pathogen coevolution increases genetic variation in susceptibility to infection

    Elizabeth ML Duxbury et al.
    A history of coevolution increases genetic variation in the susceptibility of Drosophila to viruses, largely by introducing major-effect resistance polymorphisms into populations.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Eighteenth century Yersinia pestis genomes reveal the long-term persistence of an historical plague focus

    Kirsten I Bos et al.
    The analysis of 18th century Y. pestis genomes reveals a bacterial lineage that might be responsible for the 400-year period of European plague epidemics from the Renaissance through early modern times.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Immune genes are hotspots of shared positive selection across birds and mammals

    Allison J Shultz, Timothy B Sackton
    Pathogens, particularly viruses, target the same genes over deep evolutionary time, resulting in shared signatures of positive selection and transcriptional responses at the same genes.
    1. Microbiology and Infectious Disease

    Severe infections emerge from commensal bacteria by adaptive evolution

    Bernadette C Young et al.
    Life-threatening S. aureus infections emerge from commensal nose bacteria in association with repeatable adaptive evolution.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Species-wide whole genome sequencing reveals historical global spread and recent local persistence in Shigella flexneri

    Thomas R Connor et al.
    Shigella flexneri, globally the most frequent cause of bacterial dysentery, is far more diverse, and has caused disease around the world for far longer than other Shigella species by persisting in local environments over extended timescales.
    1. Evolutionary Biology

    Destructive disinfection of infected brood prevents systemic disease spread in ant colonies

    Christopher D Pull et al.
    Upon detecting a fatal infection using chemical cues, ants puncture the cuticle of sick brood and inject antimicrobial poison that disrupts the pathogen's life cycle and prevents it from reproducing, thus protecting the colony from disease.
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Viruses are a dominant driver of protein adaptation in mammals

    David Enard et al.
    Viruses drive adaptation at the scale of the whole proteome and not only in antiviral proteins in mammalian hosts.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Neolithic and medieval virus genomes reveal complex evolution of hepatitis B

    Ben Krause-Kyora et al.
    Ancient hepatitis B virus (HBV) genomes were reconstructed from up to 7000-year-old Stone Age human skeletons, suggesting a long-time complex co-evolution with human populations.
    1. Genetics and Genomics
    2. Plant Biology

    Evidence for suppression of immunity as a driver for genomic introgressions and host range expansion in races of Albugo candida, a generalist parasite

    Mark McMullan et al.
    Hybridization and introgression blur species boundaries and broaden genetic diversity available for adaptation; and widespread introgression underpins the evolution of races of the generalist pathogen Albugo candida that specialise on different host plant species.
    1. Developmental Biology

    Dynamic BMP signaling polarized by Toll patterns the dorsoventral axis in a hemimetabolous insect

    Lena Sachs et al.
    During the evolution of insect lineages, a signaling pathway dedicated to pathogen defense was co-opted for a new role in embryonic patterning.

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