摘要
自然界中植物花的大小受到遗传因素和环境因素的双重调节。传粉者、天敌和逆境胁迫等多种因素相互制约,作为选择压力共同影响花器官形态和繁殖能力,通过选择适合的基因型,推动花器官大小的进化。近年来,对花器官大小调控机制的研究又有新的进展,已在模式植物拟南芥中分离出大量参与花器官大小调控的基因,并证实它们主要在细胞水平影响花器官的增殖和生长。本文介绍花器官大小的进化及其生物学意义,并综述了拟南芥花器官大小调控机制的研究进展。
The size of flower is determined by both genetic and environmental factors in nature. The combined selective pressure from pollinators, predators and stress affects the floral organ morphology and its reproductive capacity, which promotes the evolution of floral organ size by genotype selection. Recently, progress has been made on the mechanism research of floral organ size reg·Lation. Several genes which affect the cell prolifera- tion and cell expansion have been isolated and proved to be involved in floral organ size reg·Lation at the cell·Lar level in Arabidopsis thaliana. In this review, we focus on the evolution of floral organ size, its biological significance, and summarize the research progress of its reg·Lation mechanism in A. thaliana.
出处
《植物生理学报》
CAS
CSCD
北大核心
2014年第6期691-697,共7页
Plant Physiology Journal
基金
浙江省自然科学基金项目(Y3100273和Y14C020013)
国家自然科学基金项目(31100203)
关键词
花器官大小
基因
调控机制
细胞增殖
细胞生长
floral organ size
gene
reg·Lation mechanism
cell proliferation
cell expansion
