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  1. Article ; Online: Warming and pollution interact to alter energy transfer efficiency, performance and fitness across generations in zebrafish (Danio rerio).

    Seebacher, Frank / Bamford, Stephanie M

    The Science of the total environment

    2023  Volume 912, Page(s) 168942

    Abstract: Energy transfer efficiency across different trophic levels, from food to new biomass, can determine population dynamics and food-web function. Here we show that the energy needed to produce a unit of new biomass increases with warming and exposure to ... ...

    Abstract Energy transfer efficiency across different trophic levels, from food to new biomass, can determine population dynamics and food-web function. Here we show that the energy needed to produce a unit of new biomass increases with warming and exposure to bisphenol A (BPA), an endocrine disrupting compound. These environmental effects are at least partially transmitted across generations via DNA methylation. We raised parental (F0) and their offspring (F1) zebrafish (Danio rerio) of two genotypes (DNA methyltransferase 3a knock-out [DNMT3a
    MeSH term(s) Animals ; Zebrafish/physiology ; DNA Methylation ; Swimming ; Benzhydryl Compounds/toxicity ; Benzhydryl Compounds/metabolism
    Chemical Substances Benzhydryl Compounds
    Language English
    Publishing date 2023-12-02
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.168942
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Sex-specific transgenerational plasticity: developmental temperatures of mothers and fathers have different effects on sons and daughters.

    Seebacher, Frank / Bamford, Stephanie M / Le Roy, Amelie

    The Journal of experimental biology

    2023  Volume 226, Issue 12

    Abstract: Each parent can influence offspring phenotype via provisioning of the zygote or sex-specific DNA methylation. Transgenerational plasticity may therefore depend on the environmental conditions experienced by each parent. We tested this hypothesis by ... ...

    Abstract Each parent can influence offspring phenotype via provisioning of the zygote or sex-specific DNA methylation. Transgenerational plasticity may therefore depend on the environmental conditions experienced by each parent. We tested this hypothesis by conducting a fully factorial experiment across three generations of guppies (Poecilia reticulata), determining the effects of warm (28°C) and cold (21°C) thermal backgrounds of mothers and fathers on mass and length, and thermal performance (sustained and sprint swimming speeds, citrate synthase and lactate dehydrogenase activities; 18, 24, 28, 32 and 36°C test temperatures) of sons and daughters. Offspring sex was significant for all traits except for sprint speed. Warmer mothers produced sons and daughters with reduced mass and length, and warmer fathers produced shorter sons. Sustained swimming speed (Ucrit) of male offspring was greatest when both parents were raised at 28°C, and warmer fathers produced daughters with greater Ucrit. Similarly, warmer fathers produced sons and daughters with greater metabolic capacity. We show that the thermal variation experienced by parents can modify offspring phenotype, and that predicting the impacts of environmental change on populations would require knowledge of the thermal background of each mother and father, particularly where sexes are spatially segregated.
    MeSH term(s) Female ; Animals ; Male ; Humans ; Mothers ; Nuclear Family ; Temperature ; Phenotype ; Poecilia ; Fathers
    Language English
    Publishing date 2023-06-23
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218085-6
    ISSN 1477-9145 ; 0022-0949
    ISSN (online) 1477-9145
    ISSN 0022-0949
    DOI 10.1242/jeb.245798
    Database MEDical Literature Analysis and Retrieval System OnLINE

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