第二阶段为花器官分化期。
The important roles of homeotic genes in the floral organ development were summarized.主要论述了花发育过程中花器官同源异形基因及其相关基因的调控机理。
The molecular mechanism of floral organ development is a hotspot in plant developmental biology researches.花器官发育的分子遗传机制是目前植物发育生物学的研究热点之一。