9,202 results found
    1. Genetics and Genomics

    Dynamic molecular evolution of a supergene with suppressed recombination in white-throated sparrows

    Hyeonsoo Jeong, Nicole M Baran ... Soojin V Yi
    Comprehensive genomic and population genetic analyses of a non-recombining chromosome in white-throated sparrows reveal the actions of purifying selection, positive selection, and balancing selection, expanding our understanding of supergene evolution.
    1. Neuroscience

    Deletion of Stk11 and Fos in mouse BLA projection neurons alters intrinsic excitability and impairs formation of long-term aversive memory

    David Levitan, Chenghao Liu ... Sacha B Nelson
    Stk11 and Fos expression plays an important role in CTA long-term memory formation by modulating the intrinsic excitability of BLApn.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Divergent kleisin subunits of cohesin specify mechanisms to tether and release meiotic chromosomes

    Aaron F Severson, Barbara J Meyer
    Mechanisms that tether and release replicated sister chromatids to produce sperm and eggs rely extensively on meiotic cohesin complexes that are endowed with unexpectedly different properties specified by a single interchangeable subunit, the α-kleisin.
    1. Neuroscience

    Enteroendocrine cell types that drive food reward and aversion

    Ling Bai, Nilla Sivakumar ... Zachary A Knight
    A method for the genetic manipulation of enteroendocrine cells reveals how different intestinal cell types control food intake and drive post-ingestive learning.
    1. Computational and Systems Biology
    2. Developmental Biology

    Modularity, criticality, and evolvability of a developmental gene regulatory network

    Berta Verd, Nicholas AM Monk, Johannes Jaeger
    A new approach focusing on dynamic modularity helps overcome traditional challenges detecting modularity in complex adaptive systems.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    Reversions mask the contribution of adaptive evolution in microbiomes

    Paul A Torrillo, Tami D Lieberman
    The timescale dependence of dN/dS in bacteria is better explained by adaptive than purifying dynamics, suggesting comparative genomics can underestimate past adaptation.
    1. Evolutionary Biology

    Major patterns in the introgression history of Heliconius butterflies

    Yuttapong Thawornwattana, Fernando Seixas ... James Mallet
    The full-likelihood multispecies coalescent approach is useful for studying species groups with high rates of introgression from whole-genome sequence data.
    1. Evolutionary Biology
    2. Genetics and Genomics

    The evolutionary history of human spindle genes includes back-and-forth gene flow with Neandertals

    Stéphane Peyrégne, Janet Kelso ... Svante Pääbo
    Analyses of spindle genes with missense changes in modern humans reveal evidence for positive selection since the split with archaic humans and show that modern humans interacted with Neandertals more than once in the past 200,000 years.
    1. Computational and Systems Biology

    Decoding mechanism of action and sensitivity to drug candidates from integrated transcriptome and chromatin state

    Caterina Carraro, Lorenzo Bonaguro ... Barbara Gatto
    Combined analyses of transcriptome and chromatin accessibility elucidated the mechanisms underlying cancer cell lines response to antitumor candidates and provided a versatile perturbation-informed basal signature able to predict drug sensitivity.
    1. Ecology
    2. Genetics and Genomics

    Individual differences in honey bee behavior enabled by plasticity in brain gene regulatory networks

    Beryl M Jones, Vikyath D Rao ... Gene E Robinson
    Integration of automatic behavioral tracking with brain molecular profiling reveals the role of gene regulatory network plasticity in the regulation of behavioral phenotypes.

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