表观遗传学
生物
非生物成分
非生物胁迫
组蛋白
染色质
DNA甲基化
背景(考古学)
拟南芥
遗传学
进化生物学
基因
基因表达
生态学
突变体
古生物学
作者
Michal Lieberman-Lazarovich,Taehoon Kim,Prashant Singh,Kevin Begcy
出处
期刊:Elsevier eBooks
[Elsevier]
日期:2021-01-01
卷期号:: 75-90
标识
DOI:10.1016/b978-0-12-822849-4.00016-4
摘要
Epigenetic modifications are covalently bound molecular marks on the DNA or histones in the context of chromatin. These marks, found to be abundant in all angiosperms investigated so far, play central roles during plant development and response to environmental cues. Epigenetic marks are dynamic and are actively added or removed in response to different cellular cues, resulting in a tight regulation of gene expression. Although epigenetic marks are known to be important for plant development, their role in crop performance under stress conditions receives growing attention. In this chapter, we highlight recent findings linking different classes of epigenetic marks (DNA methylation, histone modifications, and histone variants) to the response to various abiotic stresses in crop plants. Last, we discuss the potential of epigenetics as a new, challenging path to trait improvement for the enhancement of abiotic stress resilience in crops, in light of global climate change.
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