Zhang Yang-Jing-Hui, Chang Pei-Yao, Yang Zis-Hu, Xue Yu-Hang, Li Xue-Qi, Zhang Yang
College of Life Sciences, Northeast Forestry University, Harbin 150040, China.
Yi Chuan. 2022 Dec 20;44(12):1117-1127. doi: 10.16288/j.yczz.22-171.
Anthocyanins are a class of important flavonoid compounds widely present in plants, and play important roles in plant growth, metabolism and stress responses. In the process of growth and development, anthocyanin renders the flowers and fruits of plants displaying rich colors, attracts insect pollination and animal feeding, thereby facilitating seed spreading and dissemination. In metabolic stress, anthocyanin can resist low temperature, drought, fungal infection, ultraviolet damage, insect pests and other stress-resistant processes. The anthocyanin biosynthesis is co-regulated by related structural genes as well as transcription factor genes. Recent studies have showed that the anthocyanin biosynthesis-related genes in plants are epigenetically regulated, thus affecting the synthesis of anthocyanin glycosides. Epigenetics is one of the hot topics in the field of biological sciences. In this review, we summarize the advances of epigenetic modifications in anthocyanin biosynthesis and the application of genome editing in epigenetics, thereby providing new ideas for flower color breeding improvement by epigenetic regulation.
花青素是一类重要的黄酮类化合物，广泛存在于植物中，在植物生长、代谢及应激反应中发挥着重要作用。在生长发育过程中，花青素使植物的花和果实呈现出丰富的颜色，吸引昆虫授粉和动物取食，从而促进种子传播与扩散。在代谢应激中，花青素能够抵御低温、干旱、真菌感染、紫外线损伤、虫害等抗逆过程。花青素的生物合成受相关结构基因以及转录因子基因的共同调控。近期研究表明，植物中与花青素生物合成相关的基因受到表观遗传调控，进而影响花青素糖苷的合成。表观遗传学是生命科学领域的研究热点之一。在本综述中，我们总结了花青素生物合成中表观遗传修饰的研究进展以及基因组编辑在表观遗传学中的应用，从而为通过表观遗传调控改良花色育种提供新思路。
