National Key Laboratory for Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
J Genet Genomics. 2012 Jul 20;39(7):307-15. doi: 10.1016/j.jgg.2012.02.009. Epub 2012 Apr 2.
Epigenomes including genome-wide histone modification and DNA methylation profiles are important for genome activity and for defining gene expression patterns of plant development and responses to various environmental conditions. Rice is the most important crop plant and serves as a model for cereal genomics. Rice epigenomic landscape is emerging and the function of chromatin modification regulators in gene expression, transposon repression and plant development is being characterized. Epigenomic variation that gives rise to stable or transgenerational heritable epialleles related to variation of important agronomical traits or stress responses is being characterized in rice. Implication of epigenomic variation in rice heterosis is being exploited.
表观基因组包括全基因组组蛋白修饰和 DNA 甲基化谱，对于基因组活性以及确定植物发育和对各种环境条件的反应的基因表达模式非常重要。水稻是最重要的农作物，是谷物基因组学的模式植物。水稻表观基因组景观正在出现，染色质修饰调节剂在基因表达、转座子抑制和植物发育中的功能正在被描绘。与重要农艺性状或胁迫反应的变异性相关的导致稳定或跨代可遗传表观等位基因的表观基因组变异正在水稻中被描绘。在水稻杂种优势中利用表观基因组变异的影响。
