7,064 results found
    1. Computational and Systems Biology
    2. Evolutionary Biology

    Expression noise facilitates the evolution of gene regulation

    Luise Wolf et al.
    In-lab evolution of synthetic promoters has revealed a novel general mechanism for de novo evolution of gene regulation, and highlights the crucial role of expression noise in this process.
    1. Developmental Biology
    2. Evolutionary Biology

    Landscape of histone modifications in a sponge reveals the origin of animal cis-regulatory complexity

    Federico Gaiti et al.
    The complex chromatin-based genomic regulatory system controlling developmental gene expression in complex bilaterians predates the evolution of morphological complexity and may have been a prerequisite for the evolution of the first simple multicellular animals.
    1. Cell Biology
    2. Evolutionary Biology

    tRNA genes rapidly change in evolution to meet novel translational demands

    Avihu H Yona et al.
    Experimental evolution and systematic sequence analysis of transfer RNA genes reveal that anticodon mutations provide adaptive plasticity to the translation machinery.
    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. Evolutionary Biology

    Long read sequencing reveals poxvirus evolution through rapid homogenization of gene arrays

    Thomas A Sasani et al.
    An adaptive process of genetic homogenization in poxviruses facilitates the propagation of single nucleotide variation within gene copies and might favor the persistence of large gene copy arrays.
    1. Chromosomes and Gene Expression

    Chromosome-wide mechanisms to decouple gene expression from gene dose during sex-chromosome evolution

    Bayly S Wheeler et al.
    A chromosome-wide mechanism balances X-linked gene expression between the sexes in C. elegans, but no similar chromosome-wide mechanism balances gene expression between X chromosomes and autosomes.
    1. Biochemistry and Chemical Biology
    2. Genetics and Genomics

    Evolution of substrate specificity in a retained enzyme driven by gene loss

    Ana Lilia Juárez-Vázquez et al.
    An integrated biochemical and evolutionary analysis shows how enzyme specificity evolves after gene loss during genome decay, implicating relaxation of purifying selection as a driving force for functional divergence.
    1. Developmental Biology
    2. Neuroscience

    Evolution and cell-type specificity of human-specific genes preferentially expressed in progenitors of fetal neocortex

    Marta Florio et al.
    Transcriptomic and genomic analysis provides a resource of 50 primate-specific genes preferentially expressed in neural progenitors of fetal human neocortex, 15 of which are specific to humans.
    1. Evolutionary Biology

    Expansion of the fatty acyl reductase gene family shaped pheromone communication in Hymenoptera

    Michal Tupec et al.
    A fatty acyl reductase gene family expansion in the Hymenoptera crown group led to recruitment of novel pheromone-biosynthetic enzymes and is linked to evolution of pheromone marking behavior.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Evolutionary principles of modular gene regulation in yeasts

    Dawn A Thompson et al.
    The divergence of gene regulation during evolution in yeast traces phylogenetic distance with prominent changes being associated with changes in lifestyle and a whole genome duplication event.

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