LE对拟南芥花器官发育调节机理的研究

Much progress has been made in recent years towards the understanding of the molecular mechanisms controlling flower development. In particular, a number of genes that play important roles during flower development in different plant species have been isolated and characterized in detail。 Genetic models for flower development have been established. However, very little is known about a fundamental biological topic in flower development: the gynoecium fusion. We characterized extensively an Arabidopsis mutant, leunig (lug), which showed abnormalities in carpel fusion. By genetic and morphological analyses, we proved that the LUG functions are required for the gynoecium fusion. In addition, we identified another participant, the FIL gene, in the gynoecium fusion. lug fil double mutant demonstrated severe phenotypes with completely unfused flower organs. By the research work that we performed, we have established a solid base towards the understanding of regulatory network in gynoecium fusion.

植物花器官发育是一个相当复杂的过程，该过程的每一步都是由一个或多个基因精细骺氐摹EUNIG ENHANCER (LE) 是我们实验室新鉴定的一个与拟南芥花器官发育调控相关的基因。初步研究结果表明LE基因是花器官发育的重要调控基因------LEUNIG(LUG)途径中的一个新成员。应用形态学、遗传学和分子生物学的方法对LE基因在拟南芥花器官发育过程中的功能及其与LUG和其它开花基因的相互作用进行