被子植物花朵重瓣化分子调控机制

Molecular Mechanism of Petal Doubling of Flower in Angiosperm

重瓣花表现为花瓣数目增加、花瓣褶皱或面积增大,具有较高的观赏价值和经济价值。该文针对重瓣性状中花瓣或花瓣类似器官数目增多的特点,综述了模式植物和观赏植物中重瓣花形成的分子机理,包括参与花瓣数量调控的重要转录因子,以及miRNAs、DNA甲基化、组蛋白修饰和染色质重塑等表观遗传调控方式,并在此基础上展望未来的研究方向。

Double flower is characterized by the increase in the number of petals,the folding of petal or the increase in area of petal,which usually has higher ornamental and economic value.Focusing on the increased number of petal and petal-like organ in double flower,we summarized and discussed the molecular mechanism of the formation of double flower in some model plants and ornamental plants,including the key transcription factors and the epigenetic modifications such as miRNAs,DNA methylation,histone modification and chromatin remodeling involved in the regulation of petal number.And based on this,we discussed the developing trend of the future research.