期刊
EPIGENETICS & CHROMATIN
卷 16, 期 1, 页码 -出版社
BMC
DOI: 10.1186/s13072-023-00488-5
关键词
Epigenetics; DNA methylation; CpG island; Transgenerational inheritance; Acquired characters; Mutation
The inheritance of acquired traits in mammals is a controversial topic. Recent research suggests that DNA methylation patterns can be transmitted across generations even after removal of foreign DNA. However, there are interpretational issues and alternative explanations to consider.
The inheritance of acquired traits in mammals is a highly controversial topic in biology. Recently, Takahashi et al. (Cell 186:715-731, 2023) have reported that insertion of CpG-free DNA into a CpG island (CGI) can induce DNA methylation of the CGI and that this aberrant methylation pattern can be transmitted across generations, even after removal of the foreign DNA. These results were interpreted as evidence for transgenerational inheritance of acquired DNA methylation patterns. Here, we discuss several interpretational issues raised by this study and consider alternative explanations.
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