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    1. Developmental Biology
    2. Genetics and Genomics

    Deployment of a retinal determination gene network drives directed cell migration in the sea urchin embryo

    Megan L Martik, David R McClay
    The gene regulatory network controlling directed cell migration in a sea urchin is strikingly similar to a sub-circuit for eye development in Drosophila, suggesting that ancient systems-level controls may be adapted for diverse functions in different animals.
    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. Eph and Ephrin function in dispersal and epithelial insertion of pigmented immunocytes in sea urchin embryos

    Oliver A Krupke et al.
    Eph receptor signaling commonly excludes migrating embryonic cells from regions of high ligand density; however, in sea urchin embryos pigmented immunocytes are attracted to regions expressing high levels of Ephrin.
    1. Neuroscience

    A resource-rational theory of set size effects in human visual working memory

    Ronald van den Berg, Wei Ji Ma
    Set size effects in visual working memory are explained as a resource-rational trade-off between an error-based behavioral cost and a neural encoding cost.
    1. Ecology
    2. Evolutionary Biology

    Point of View: Managing a sustainable deep-sea ‘blue economy’ requires knowledge of what actually lives there

    Adrian G Glover et al.
    High-throughput, integrative taxonomy has a crucial role to play in ensuring that the resources in our oceans are managed and developed in a sustainable manner.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    scRNA-Seq reveals distinct stem cell populations that drive hair cell regeneration after loss of Fgf and Notch signaling

    Mark E Lush et al.
    Several support cell populations balance progenitor maintenance with differentiation in zebrafish lateral line sensory organs.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Sex-specific transcriptomic responses to changes in the nutritional environment

    M Florencia Camus et al.
    Male and female Drosophila share core metabolic responses to different nutritional environments, but show opposing patterns of nutrient-dependent reproductive regulation.
    1. Neuroscience

    Conditional deletion of glucocorticoid receptors in rat brain results in sex-specific deficits in fear and coping behaviors

    Jessie R Scheimann et al.
    Development of a conditional glucocorticoid receptor knockdown rat model allows for high resolution anatomical, physiological and behavioral exploration into the role of glucocorticoid receptor signaling in defined cell populations.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Natural depletion of histone H1 in sex cells causes DNA demethylation, heterochromatin decondensation and transposon activation

    Shengbo He et al.
    Transposon activation during male gametogenesis is caused by interactions between DNA demethylation and linker histone H1, developmental depletion of which promotes pollen fertility.
    1. Neuroscience

    Sex-dependent effects of in utero cannabinoid exposure on cortical function

    Anissa Bara et al.
    Adult male, but not female, rats showed altered neuronal function, inhibited synaptic plasticity and diminished social behavior following cannabinoid exposure during gestation in a model of cannabis use during pregnancy.