37 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Phenotypic Diversity: Setting the bar

    Charles Y Feigin, Ricardo Mallarino
    Analyzing the genomes of rock pigeons demonstrates that genetic variation comes in many forms and can have unexpected origins.
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    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Introgression of regulatory alleles and a missense coding mutation drive plumage pattern diversity in the rock pigeon

    Anna I Vickrey et al.
    Different kinds of molecular changes at one genetic locus control different feather pigmentation patterns, and the darkest patterns resulted from hybridization with another species.
    1. Neuroscience

    Representation of time interval entrained by periodic stimuli in the visual thalamus of pigeons

    Yan Yang et al.
    The experience-dependent representation of time interval in the seconds-to-minutes range occurs as early as at the thalamic level in the brain.
    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. Structural Biology and Molecular Biophysics

    Oligomerization of a molecular chaperone modulates its activity

    Tomohide Saio et al.
    A combined NMR and kinetic study demonstrates how the dynamic transition of a molecular chaperone between different oligomerization states can modulate its activity by altering the binding kinetics and energetics of non-native proteins.
    1. Developmental Biology
    2. Genetics and Genomics

    Molecular shifts in limb identity underlie development of feathered feet in two domestic avian species

    Eric T Domyan et al.
    Feathered feet of pigeons and chickens result from a partial molecular and morphological transformation of legs to a wing-like identity.
    1. Neuroscience

    Subcellular analysis of pigeon hair cells implicates vesicular trafficking in cuticulosome formation and maintenance

    Simon Nimpf et al.
    Cuticulosomes are organelles found in the hair cells of birds that are composed of ferritin nanoparticles, form rapidly after hatching by the fusion of vesicular structures, and may play an indirect role in magnetic sensation.
    1. Microbiology and Infectious Disease

    Type III CRISPR-Cas systems can provide redundancy to counteract viral escape from type I systems

    Sukrit Silas et al.
    Cooperation between evolutionarily disparate CRISPR-Cas modules allows bacteria to counter mutational escape by viruses.
    1. Neuroscience

    Embryonic transcription factor expression in mice predicts medial amygdala neuronal identity and sex-specific responses to innate behavioral cues

    Julieta E Lischinsky et al.
    Studying the development of the medial amygdala in the mouse reveals how the brain may potentially process sex differences in innate behaviors such as mating.
    1. Chromosomes and Gene Expression

    Aurora-A mediated histone H3 phosphorylation of threonine 118 controls condensin I and cohesin occupancy in mitosis

    Candice L Wike et al.
    A histone modification that alters the nucleosome structure occurs in mitosis and promotes chromosome packaging and the timely removal of condensin I and cohesion, to achieve chromosome segregation.

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