7,585 results found
    1. Evolutionary Biology

    Adaptation: Evolution of island lizards remains a mystery

    Kathryn D Kavanagh
    Lizards that live in the Greater Antilles exploit a large range of skeletal variations to adapt to similar habitats, in defiance of the theory of plasticity-led evolution.
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    1. Cell Biology
    2. Evolutionary Biology

    Multicellularity: How contraction has shaped evolution

    Mukund Thattai
    Two new unicellular organisms reveal that coordinated contractions of groups of cells using actomyosin predated animal multicellularity during evolution.
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    1. Evolutionary Biology
    2. Plant Biology

    Speciation: How predictable is genome evolution?

    Matthew J Coathup et al.
    Similar patterns of genomic divergence have been observed in the evolution of plant species separated by oceans.
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    1. Evolutionary Biology
    2. Plant Biology

    Independent evolution of ancestral and novel defenses in a genus of toxic plants (Erysimum, Brassicaceae)

    Tobias Züst et al.
    A gain-of-function in a new chemical defense resulted in no trade-offs and and independent evolution between novel and ancestral defenses, suggesting low redundancy among different defensive chemicals.
    1. Evolutionary Biology
    2. Genetics and Genomics

    The role of structural pleiotropy and regulatory evolution in the retention of heteromers of paralogs

    Axelle Marchant et al.
    Regulatory evolution allows paralogs to escape from strucural pleiotropy.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Intrinsic cooperativity potentiates parallel cis-regulatory evolution

    Trevor R Sorrells et al.
    Cooperativity between two transcription regulators occurs through protein-protein interactions with a general transcription factor complex and potentiates the parallel evolution of their DNA binding sites.
    1. Developmental Biology
    2. Evolutionary Biology

    Functional divergence of paralogous transcription factors supported the evolution of biomineralization in echinoderms

    Jian Ming Khor, Charles A Ettensohn
    A gene duplication event has permitted the functional specialization of a homeodomain transcription factor through changes in exon-intron organization and these changes have supported the evolution of a major, phylum-level morphological novelty.
    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. Developmental Biology
    2. Evolutionary Biology

    Maternally regulated gastrulation as a source of variation contributing to cavefish forebrain evolution

    Jorge Torres-Paz et al.
    Phenotypic evolution can originate from variations in very precocious developmental events, starting even before fecundation, during the fabrication of the egg in the mother's gonad.
    1. Evolutionary Biology

    Intermolecular epistasis shaped the function and evolution of an ancient transcription factor and its DNA binding sites

    Dave W Anderson et al.
    Experimental mapping of the joint sequence space of an ancient transcription factor (TF) and its DNA binding sites reveals that epistasis across the molecular interface permitted the evolution of a new and specific TF-DNA complex.

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