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    1. Developmental Biology
    2. Genetics and Genomics

    Genome-wide errant targeting by Hairy

    Kurtulus Kok et al.
    Pervasive ‘futile cycling’ by chromatin-modifying factors suggests a mechanism for creating new links in gene regulatory networks.
    1. Genetics and Genomics

    Gene regulatory network plasticity predates a switch in function of a conserved transcription regulator

    Isabel Nocedal et al.
    Rapid evolutionary rewiring of the meiosis transcription network facilitated a switch in the function of a master regulator from regulating meiosis to regulating biofilm formation.
    1. Cell Biology
    2. Developmental Biology

    Early asymmetric cues triggering the dorsal/ventral gene regulatory network of the sea urchin embryo

    Vincenzo Cavalieri, Giovanni Spinelli
    During early embryogenesis of the sea urchin, asymmetrical positioning of the dorsal/ventral organizer relies upon the suppression of organizer activities in dorsal blastomeres by the Hbox12 homeodomain-containing repressor.
    1. Genetics and Genomics

    Gene Regulation: Spreading good news

    Jeffrey A Fawcett, Hideki Innan
    Insight
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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. Evolutionary Biology

    Genes associated with ant social behavior show distinct transcriptional and evolutionary patterns

    Alexander S Mikheyev, Timothy A Linksvayer
    Genes associated with age-based division of labor in ants exist in distinct regulatory and evolutionary contexts; genes up-regulated in young nurses are loosely connected and rapidly evolving while genes up-regulated in old foragers are highly connected and conserved.
    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.
    1. Developmental Biology

    Control of neural crest multipotency by Wnt signaling and the Lin28/let-7 axis

    Debadrita Bhattacharya et al.
    The developmental potential of neural crest stem cells is regulated by a post-transcriptional mechanism that operates in a position-dependent manner.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Evolution of reduced co-activator dependence led to target expansion of a starvation response pathway

    Bin Z He et al.
    The phosphate starvation response network in a commensal yeast evolved to expand its downstream targets via changes in the main transcription factor's dependence on its co-activator, potentially altering the physiological response.
    1. Genetics and Genomics

    Non-allelic gene conversion enables rapid evolutionary change at multiple regulatory sites encoded by transposable elements

    Christopher E Ellison, Doris Bachtrog
    Fully functional regulatory elements can arise rapidly from transposable elements via a novel route where non-allelic gene conversion can act to speed up the evolutionary fine-tuning of regulatory elements.