《生命科学》 2009, 21(2): 335-342

拟南芥春化作用相关基因FLC的表达调控及天然早花突变体的研究进展

李　勇，胡宗利，顾　峰，胡功铃，陈国平*

重庆大学生物工程学院，重庆 400030

摘　要：摘　要：植物开花是从营养生长到生殖状态的重要发育转变，是多种内在因子和环境因素共同作用的结果。在拟南芥开花调控网络中，开花抑制基因FLC处于枢纽地位。FLC的表达受许多来自环境和生长发育的信号调控，主要包括：PAF1复合体、SWR1复合体成员，FRI依赖途径、自主途径和春化作用途径基因。本文主要综述了影响FLC表达的春化相关基因及天然早花突变体的研究进展，并根据最新的研究成果提出该研究领域的研究方向和重点。
关键词：FLC；春化相关基因；染色质修饰；天然早花突变体

Research progress on the regulation of expression of Arabidopsis vernalization-related gene FLC and natural early flowering variation

LI Yong ， HU Zong-li， GU Feng， HU Gong-ling， CHEN Guo-ping*

Bioengineering College of Chongqing University， Chongqing 400030， China

Abstract: Abstract: Plant flowering is a crucial developmental transition from the vegetative to reproductive phase and is properly timed by a number of intrinsic and environmental cues. In the regulation network of flowering of Arabidopsis， FLC is a potent repressor of flowering. The expression of FLC is regulated by lots of factors， including endogenous cues and environmental stimuli which mainly contain: SWR1complex， PAF1complex， FRI complex， autonomous pathway and vernalization pathway genes. This paper reviews the progress of study on vernalization-related genes that regulate the expression of FLC and natural early flowering variation， and the new directions and focal points in this research field.
Key words: FLC; vernalization-related genes; modifications of chromatin; natural early flowering variation