Intergenerational epigenetic inheritance in reef-building corals

被引:0
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作者
Yi Jin Liew
Emily J. Howells
Xin Wang
Craig T. Michell
John A. Burt
Youssef Idaghdour
Manuel Aranda
机构
[1] King Abdullah University of Science and Technology,Red Sea Research Center, Biological and Environmental Sciences & Engineering Division
[2] New York University Abu Dhabi,Center for Genomics and Systems Biology and Program in Biology
[3] CSIRO Health & Biosecurity,Centre for Sustainable Ecosystem Solutions, School of Earth, Atmospheric and Life Sciences
[4] University of Wollongong,Center for Cardiovascular Regeneration
[5] Houston Methodist,Department of Environmental and Biological Sciences
[6] University of Eastern Finland,undefined
来源
Nature Climate Change | 2020年 / 10卷
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摘要
The perception that the inheritance of phenotypic traits operates solely through genetic means is slowly being eroded: epigenetic mechanisms have been shown to induce heritable changes in gene activity in plants1,2 and metazoans1,3. Inheritance of DNA methylation patterns provides a potential pathway for environmentally induced phenotypes to contribute to evolution of species and populations1–5. However, in basal metazoans, it is unknown whether inheritance of CpG methylation patterns occurs across the genome (as in plants) or as rare exceptions (as in mammals)4. Here, we show that DNA methylation patterns in a reef-building coral are determined by genotype and developmental stage, as well as by parental environment. Transmission of CpG methylation from adults to their sperm and larvae demonstrates genome-wide inheritance. Variation in the hypermethylation of genes in adults and their sperm from distinct environments suggests intergenerational acclimatization to local temperature and salinity. Furthermore, genotype-independent adjustments of methylation levels in stress-related genes were strongly correlated with offspring survival rates under heat stress. These findings support a role of DNA methylation in the intergenerational inheritance of traits in corals, which could extend to enhancing their capacity to adapt to climate change.
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页码:254 / 259
页数:5
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