166 results found
    1. Evolutionary Biology
    2. Genetics and Genomics

    Gene flow mediates the role of sex chromosome meiotic drive during complex speciation

    Colin D Meiklejohn et al.
    Selfish genetic elements may either promote or prevent the evolution of reproductive barriers, depending on the extent of gene flow between species.
    1. Genetics and Genomics

    Natural variation in sugar tolerance associates with changes in signaling and mitochondrial ribosome biogenesis

    Richard G Melvin et al.
    The optimal macronutrient composition, macronutrient space, varies strongly between closely related species and is determined by genetic changes in regulatory genes that globally reprogram gene expression profiles of metabolic pathways.
    1. Evolutionary Biology
    2. Neuroscience

    Evolved differences in larval social behavior mediated by novel pheromones

    Joshua D Mast et al.
    A novel pheromone/receptor neuron pair mediates attraction between Drosophila larvae, and evolved differences in pheromone signaling underlie changes in social behavior between drosophilid species.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Innovation of heterochromatin functions drives rapid evolution of essential ZAD-ZNF genes in Drosophila

    Bhavatharini Kasinathan et al.
    Heterochromatic sequences evolve rapidly, as do ZAD-ZNF genes-encoding proteins involved in heterochromatin functions, explaining why evolutionarily dynamic ZAD-ZNF genes are more likely to be essential in Drosophila.
    1. Evolutionary Biology
    2. Genetics and Genomics

    Rapid sex-specific adaptation to high temperature in Drosophila

    Sheng-Kai Hsu et al.
    Within 100 generations after an environmental shift in an evolution experiment, rapid sex-specific adaptation occurred, which is potentially facilitated by selection on standing variation in sex-specific genetic architecture.
    1. Developmental Biology
    2. Evolutionary Biology

    Evolutionary expansion of apical extracellular matrix is required for the elongation of cells in a novel structure

    Sarah Jacquelyn Smith et al.
    A new morphological structure evolved through extreme changes in cell height requires novel connections to an extracellular matrix network, which predates the origin of structure.
    1. Ecology
    2. Neuroscience

    Dopamine drives Drosophila sechellia adaptation to its toxic host

    Sofía Lavista-Llanos et al.
    The insect dopaminergic system serves an important function in the regulation of ontogenesis and early development, contributing to the evolutionary processes that limit the ecological niche of Drosophila sechellia.
    1. Developmental Biology
    2. Physics of Living Systems

    Theoretical tool bridging cell polarities with development of robust morphologies

    Silas Boye Nissen et al.
    Biological shapes and morphological transitions can emerge from combining directed interactions between cells with apical-basal and planar cell polarity.
    1. Neuroscience

    Rapid regulation of vesicle priming explains synaptic facilitation despite heterogeneous vesicle:Ca2+ channel distances

    Janus RL Kobbersmed et al.
    Heterogeneous distances between vesicles and Ca2+-channels make synapses prone to short-term depression, however, Ca2+-dependent increases in the number of release-ready vesicles supports facilitation even with broadly distributed vesicle:Ca2+-channel distances.
    1. Developmental Biology

    Is it possible to reconstruct an accurate cell lineage using CRISPR recorders?

    Irepan Salvador-Martínez et al.
    Computer simulations reveal the potential and limitations of recently proposed CRISPR-based cell lineage recorders, and suggest how the recorders' design can be optimised to yield more accurate cell lineage trees.

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