MADS-box基因对花的发育及开花早晚的影响  

The Effect of MADS-box Gene to the Development of Flower and Flowering-time

作　　者：胡丽芳[1] 金志强[1] 徐碧玉[1] 

机构地区：[1]中国热带农业科学院热带作物生物技术国家重点实验室,中国海南海口571101

出　　处：《生命科学研究》2004年第S2期7-12,共6页Life Science Research

基　　金：海南省高校中青年教师科研和教学奖励基金

摘　　要：介绍了植物中MADS-box基因和MADS-box蛋白转录因子的组成,MADS-box基因是一类序列特异的多基因家族,所编码的蛋白即为MADS-box转录因子,它是以二聚体化的形式通过其保守结构域与特定的DNA序列相结合来调控基因的表达.主要介绍了ABC模型及MADS-box基因与花的发育,并介绍了可促进开花的4种MADS-box基因-AGL20、AGL24、CO和SOC1及抑制开花的另外4种MADS-box基因-FLC、FLM、FRI和SVP,最后提出前景和展望.This article introuduced the constitutes of the MADS box gene and the MADS box transcriptional factor in the plants,the MADS box gene is a regulatory gene family and the encoded protein is a transcription factor,which combined with specific DNA sequences by its conservative sequence in the form of dimer to regulate the expression of gene.Maily introduced the model of ABC and the effect of MADS box gene to the development of flower,and listed 4 kinds of MADS box genes AGL20、AGL24、CO and SOC1,which could improve flower;and another 4 kinds of MADS box gene FLC、FLM、FRI and SVP,which could repress flower.In the final of the article made some expectations.

关 键 词：MADS-BOX基因 ABC模型 花的发育 开花时间 

分 类 号：Q944[生物学—植物学]