Environment-driven reprogramming of gamete DNA methylation occurs during maturation and is transmitted intergenerationally in Atlantic Salmon

AbstractAn epigenetic basis for transgenerational plasticity in animals is widely theorized, but convincing empirical support is limited by taxa-specific differences in the presence and role of epigenetic mechanisms. In teleost fishes, DNA methylation generally does not undergo extensive reprogrammi...

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Bibliographic Details
Published in:G3 Genes|Genomes|Genetics
Main Authors: Kyle Wellband, David Roth, Tommi Linnansaari, R Allen Curry, Louis Bernatchez
Format: Article in Journal/Newspaper
Language:English
Published: Oxford University Press 2021
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Online Access:https://doi.org/10.1093/g3journal/jkab353
https://doaj.org/article/4a245fc5950c4d38bdc051e25a8a75cb
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Summary:AbstractAn epigenetic basis for transgenerational plasticity in animals is widely theorized, but convincing empirical support is limited by taxa-specific differences in the presence and role of epigenetic mechanisms. In teleost fishes, DNA methylation generally does not undergo extensive reprogramming and has been linked with environmentally induced intergenerational effects, but solely in the context of early life environmental differences. Using whole-genome bisulfite sequencing, we demonstrate that differential methylation of sperm occurs in response to captivity during the maturation of Atlantic Salmon (Salmo salar