Sperm as moderators of environmentally induced paternal effects in a livebearing fish

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    9 Citations (Scopus)

    Abstract

    Until recently, paternal effects-the influence of fathers on their offspring due to environmental factors rather than genes-were largely discarded or assumed to be confined to species exhibiting paternal care. It is now recognized that paternal effects can be transmitted through the ejaculate, but unambiguous evidence for them is scarce, because it is difficult to isolate effects operating via changes to the ejaculate from maternal effects driven by female mate assessment. Here,we use artificial insemination to disentangle mate assessment from fertilization in guppies, and showthat paternal effects can be transmitted to offspring exclusively via ejaculates.We showthatmales fed reduced diets produce poor-quality spermand that offspring sired by such males (via artificial insemination) exhibit reduced body size at birth. These findings may have important implications for the many mating systems in which environmentally induced changes in ejaculate quality have been reported.

    Original languageEnglish
    Article number0087
    JournalBiology Letters
    Volume13
    Issue number4
    DOIs
    Publication statusPublished - 1 Apr 2017

    Fingerprint

    paternal effect
    Spermatozoa
    Artificial Insemination
    Fishes
    spermatozoa
    artificial insemination
    fish
    Poecilia
    Poecilia reticulata
    Body Size
    fathers
    maternal effect
    Fertilization
    mating systems
    Fathers
    body size
    Parturition
    Diet
    environmental factors
    diet

    Cite this

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    title = "Sperm as moderators of environmentally induced paternal effects in a livebearing fish",
    abstract = "Until recently, paternal effects-the influence of fathers on their offspring due to environmental factors rather than genes-were largely discarded or assumed to be confined to species exhibiting paternal care. It is now recognized that paternal effects can be transmitted through the ejaculate, but unambiguous evidence for them is scarce, because it is difficult to isolate effects operating via changes to the ejaculate from maternal effects driven by female mate assessment. Here,we use artificial insemination to disentangle mate assessment from fertilization in guppies, and showthat paternal effects can be transmitted to offspring exclusively via ejaculates.We showthatmales fed reduced diets produce poor-quality spermand that offspring sired by such males (via artificial insemination) exhibit reduced body size at birth. These findings may have important implications for the many mating systems in which environmentally induced changes in ejaculate quality have been reported.",
    keywords = "Condition dependence, Epigenetic inheritance, Poecilia reticulata",
    author = "Evans, {Jonathan P.} and Lymbery, {Rowan A.} and Wiid, {Kyle S.} and Md Rahman and Clelia Gasparini",
    year = "2017",
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    Sperm as moderators of environmentally induced paternal effects in a livebearing fish. / Evans, Jonathan P.; Lymbery, Rowan A.; Wiid, Kyle S.; Rahman, Md; Gasparini, Clelia.

    In: Biology Letters, Vol. 13, No. 4, 0087, 01.04.2017.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - Sperm as moderators of environmentally induced paternal effects in a livebearing fish

    AU - Evans, Jonathan P.

    AU - Lymbery, Rowan A.

    AU - Wiid, Kyle S.

    AU - Rahman, Md

    AU - Gasparini, Clelia

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    AB - Until recently, paternal effects-the influence of fathers on their offspring due to environmental factors rather than genes-were largely discarded or assumed to be confined to species exhibiting paternal care. It is now recognized that paternal effects can be transmitted through the ejaculate, but unambiguous evidence for them is scarce, because it is difficult to isolate effects operating via changes to the ejaculate from maternal effects driven by female mate assessment. Here,we use artificial insemination to disentangle mate assessment from fertilization in guppies, and showthat paternal effects can be transmitted to offspring exclusively via ejaculates.We showthatmales fed reduced diets produce poor-quality spermand that offspring sired by such males (via artificial insemination) exhibit reduced body size at birth. These findings may have important implications for the many mating systems in which environmentally induced changes in ejaculate quality have been reported.

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    KW - Epigenetic inheritance

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