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Abstract Title:

Transgenerational transmission of environmental information in.

Abstract Source:

Science. 2017 04 21 ;356(6335):320-323. PMID: 28428426

Abstract Author(s):

Adam Klosin, Eduard Casas, Cristina Hidalgo-Carcedo, Tanya Vavouri, Ben Lehner

Article Affiliation:

Adam Klosin

Abstract:

The environment experienced by an animal can sometimes influence gene expression for one or a few subsequent generations. Here, we report the observation that a temperature-induced change in expression from aheterochromatic gene array can endure for at least 14 generations. Inheritance is primarily in cis with the locus, occurs through both oocytes and sperm, and is associated with altered trimethylation of histone H3 lysine 9 (H3K9me3) before the onset of zygotic transcription. Expression profiling reveals that temperature-induced expression from endogenous repressed repeats can also be inherited for multiple generations. Long-lasting epigenetic memory of environmental change is therefore possible in this animal.

Study Type : Animal Study
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