There are many genes which control the flowering development. FLORICAULA/LEAFY gene is one of controlling flower meristem identity of plant. We isolated the homologue gene (DFL) of FLORICAULA/LEAFY from D. lavandulifolium. The genomic sequence of DFL include three extron and two intron. The number and position of introns are conserved with other most FLORICAULA/LEAFY homologue. This result is helpful for better understanding the mechanisms of plant flowering and may have important effect in the forestry and angriculture.
高等植物成花是当今发育生物学研究的热点和难点。高等植物的成花诱导过程由自身遗传因子和外界环境因素两方面决定。在已知的成花途径中,光周期途径是研究得较为清楚的一条途径。目前高等植物光周期成花分子机理的研究主要针对拟南芥进行。光周期调控中CONSTANS(CO)是关键基因,它进行光信号和生物钟信号整合,节律性地表达激活FLOWER-ING LOCUS T(FT)表达,诱导植物开花。在不同的光周期反应的植物中,基因调控成花作用的机理并不完全相同。现就光周期成花的研究进展作简要综述。
