树木生长发育过程具有明显的幼年期和成年期,只有成年期树木才能启动生殖生长,因此研究树木从幼年期到成年期转变过程中的发育变化规律,对于阐明树木生殖发育机制和促进树木生殖输出等都具有重要意义。树木由幼年期向成年期转换过程中,形态特征和超微结构、生理生化指标、转录因子和miRNA调节、DNA甲基化水平以及端粒长短等方面发生了明显变化,本文综合国内外有关树木阶段发育的相关研究进展,对树木从幼年向成年转变过程中的发育和调控机制进行综述。 Tree growth and development process has obvious juvenile and adulthood, and only adults can start the reproductive growth of trees, so the development of trees from juvenile to adulthood during the development and change of rule, to clarify the tree reproductive and development mechanisms and promote tree reproductive output And so on are of great significance. The changes of the trees from juvenile to adulthood, morphological features and ultrastructure, physiological and biochemical indexes, regulation of transcription factors and miRNA, DNA methylation level and telomere length have significant changes. In this paper, Stage development of the relevant research progress, the trees from juvenile to adulthood during the development and control mechanisms are reviewed.