912 results found
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    Hormone-sensitive lipase couples intergenerational sterol metabolism to reproductive success

    Christoph Heier et al.
    An ancestral enzyme tailors allocation of essential lipid resources to the progeny and connects maternal and embryonic sterol metabolism for reproductive success.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Cystic proliferation of germline stem cells is necessary to reproductive success and normal mating behavior in medaka

    Luisa F Arias Padilla et al.
    In medaka fish, the reduction of cystic proliferation of germ stem cells declines gametogenesis, reproduction success, and male sexual behavior, with a decrease of mating vigor.
    1. Developmental Biology
    2. Genetics and Genomics

    miR-124 controls male reproductive success in Drosophila

    Ruifen Weng et al.
    A small RNA molecule called miR-124 controls pheromone production and sexual behaviour in Drosophila by regulating sex-specific gene expression in males.
    1. Ecology

    Sexual selection gradients change over time in a simultaneous hermaphrodite

    Jeroen NA Hoffer et al.
    The quantification of sexual selection reveals that it is important to consider the chosen time frame of measurement as well as the sexual system.
    1. Neuroscience

    Knockdown of hypothalamic RFRP3 prevents chronic stress-induced infertility and embryo resorption

    Anna C Geraghty et al.
    A chronic stressor prior to mating has lasting negative consequences on the fertility and fecundity of female rats, which can be prevented by blocking a single hypothalamic reproductive inhibitory hormone.
    1. Evolutionary Biology

    Sperm competition risk drives rapid ejaculate adjustments mediated by seminal fluid

    Michael J Bartlett et al.
    Seminal fluid harbours the as yet unknown mechanism that facilitates rapid adjustment of sperm velocity in response to changing sperm competition risk.
    1. Ecology

    Adaptive thermal plasticity enhances sperm and egg performance in a model insect

    Ramakrishnan Vasudeva et al.
    Sperm and egg development are temperature sensitive, enabling males and females to significantly improve their reproductive success by matching gamete function to varying thermal environments for fertilisation and offspring development.
    1. Cell Biology

    COMP-1 promotes competitive advantage of nematode sperm

    Jody M Hansen et al.
    Nematode sperm respond to competitive environments by modulating cellular pathways involved in migration and storage to ensure their access to oocytes.
    1. Evolutionary Biology

    Asexual reproduction reduces transposable element load in experimental yeast populations

    Jens Bast et al.
    Sexual reproduction is responsible for the evolutionary success of selfish transposable elements.
    1. Ecology

    Group size and composition influence collective movement in a highly social terrestrial bird

    Danai Papageorgiou, Damien Roger Farine
    High-resolution GPS data revealed a quadratic relationship between group size and movement, with vulturine guineafowl groups of intermediate size exhibiting the largest home-range size and greater variation in site use.

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