2,686 results found
    1. Evolutionary Biology

    Mutational robustness changes during long-term adaptation in laboratory budding yeast populations

    Milo S Johnson, Michael M Desai
    Yeast populations lose mutational robustness during evolution in one environment but not in another due to the collective effect of a large number of idiosyncratic epistatic interactions.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Promoter sequence and architecture determine expression variability and confer robustness to genetic variants

    Hjörleifur Einarsson, Marco Salvatore ... Robin Andersson
    A flexible transcription initiation architecture and a uniform regulatory grammar buffer expression variability and the effects of genetic variants on essential genes while a rigid transcription initiation architecture and a diverse regulatory grammar ensure condition-specific responsiveness of other genes.
    1. Genetics and Genomics

    Buffered Qualitative Stability explains the robustness and evolvability of transcriptional networks

    Luca Albergante, J Julian Blow, Timothy J Newman
    The theory of Buffered Qualitative Stability uses the importance of biological robustness to explain many features of gene regulatory networks in a wide range of organisms, and has implications for diverse biological phenomena including the ability of bacteria and cancer cells to ‘loosen’ their robustness and hence evade treatment.
    1. Developmental Biology

    Growth-factor-mediated coupling between lineage size and cell fate choice underlies robustness of mammalian development

    Néstor Saiz, Laura Mora-Bitria ... Anna-Katerina Hadjantonakis
    A mechanistic basis is provided for the regulative ability of the mammalian embryo offering a long-sought explanation for coordinating cell behaviors at the population level ensuring robustness in developmental outcome.
    1. Developmental Biology
    2. Evolutionary Biology

    Mutation of vsx genes in zebrafish highlights the robustness of the retinal specification network

    Joaquín Letelier, Lorena Buono ... Juan R Martínez-Morales
    Depletion of vsx genes in zebrafish confirms a conserved role in bipolar cells specification across vertebrates, but do not interfere with the formation of the neural retina domain, which reveal an unexpected robustness of the genetic network sustaining the retina.
    1. Cell Biology

    Robustness of the microtubule network self-organization in epithelia

    Aleksandra Z Płochocka, Miguel Ramirez Moreno ... Lyubov Chumakova
    Computational, theoretical, and in vivo studies reveal that in epithelia the self-organization of apical microtubules is robustly determined by cell geometry and minus-end distribution, not organism environment or genetics.
    1. Computational and Systems Biology
    2. Neuroscience

    The geometry of robustness in spiking neural networks

    Nuno Calaim, Florian A Dehmelt ... Christian K Machens
    Spiking neural networks become robust to various perturbations of their parameters if their voltages are confined to a lower-dimensional subspace, and both dynamics and robustness can be visualised in this voltage subspace.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Multi-enhancer transcriptional hubs confer phenotypic robustness

    Albert Tsai, Mariana RP Alves, Justin Crocker
    Multiple enhancers in physical proximity can reinforce shared transcriptional 'hubs' to preserve their transcriptional output, providing a buffer during environmental stresses and genetic perturbations to preserve phenotypic robustness.
    1. Computational and Systems Biology
    2. Physics of Living Systems

    Measurements of damage and repair of binary health attributes in aging mice and humans reveal that robustness and resilience decrease with age, operate over broad timescales, and are affected differently by interventions

    Spencer Farrell, Alice E Kane ... Andrew D Rutenberg
    Damage and repair for both aging mice and humans declined with age, exhibited very long timescales that varied across health attributes, and were differently affected by interventions.
    1. Computational and Systems Biology
    2. Developmental Biology

    Dynamic readout of the Hh gradient in the Drosophila wing disc reveals pattern-specific tradeoffs between robustness and precision

    Rosalío Reyes, Arthur D Lander, Marcos Nahmad
    Theoretical and experimental evidence that Hh signaling dynamics balances robust positioning and sharpness of different target genes in the Drosophila wing disc.

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