8,050 results found
    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. 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. 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. Cell Biology

    Super-resolution microscopy reveals majorly mono- and dimeric presenilin1/γ-secretase at the cell surface

    Abril Angélica Escamilla-Ayala et al.
    Super-resolution microscopy sets a new strategy to comprehend the membrane organization of γ-secretase at single complex resolution identifying nanodomain associations and its diffusion in situ in the living membrane.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Emergence and diversification of a host-parasite RNA ecosystem through Darwinian evolution

    Taro Furubayashi et al.
    In an in vitro RNA replication system, an RNA spontaneously diversifies and continuously evolves through coevolution with parasitic entities.
    1. Evolutionary Biology

    Convergent evolution of small molecule pheromones in Pristionchus nematodes

    Chuanfu Dong et al.
    Unexpected structural diversity of nematode small molecules, as revealed by high-resolution phylogenetic analysis, suggests recurrent biochemical innovation, a pattern that is probably typical across animals.

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