Transgenerational transmission of environmental information in C. elegans.
Adam KlosinEduard CasasCristina Hidalgo-CarcedoTanya VavouriBen LehnerPublished in: Science (New York, N.Y.) (2017)
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 a Caenorhabditis elegans heterochromatic 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.
Keyphrases
- gene expression
- poor prognosis
- dna methylation
- high glucose
- genome wide
- diabetic rats
- binding protein
- drug induced
- high resolution
- transcription factor
- endothelial cells
- human health
- healthcare
- working memory
- high throughput
- long non coding rna
- genome wide identification
- oxidative stress
- copy number
- health information
- risk assessment
- genome wide analysis