Genetic analyses of signalling in flower development using Arabidopsis
Genetic analyses of signalling in flower development using Arabidopsis
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DOI：
10.1007/bf00016480
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发表时间：
1994-12
影响因子：
5.1
通讯作者：
K. Okada;Y. Shimura
中科院分区：
文献类型：
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作者：
K. Okada;Y. Shimura
花的发育可分为四个主要阶段：从营养生长到生殖生长的阶段转换、花序分生组织的形成、花器官的形成和鉴定以及花器官的生长和成熟。细胞间和细胞内信号传导机制在花发育的每一个步骤中必须发挥重要作用，因为它需要细胞分裂，细胞生长和细胞分化以协调一致的方式进行。该过程的分子遗传学分析已经开始分离一系列突变体，这些突变体具有不寻常的开花时间，花序和花中的异常结构，并且没有自花受精。目前已从拟南芥中鉴定出60多个基因，部分基因已被克隆.虽然信息仍然有限，但揭示了几种类型的信号系统。在这篇综述中，我们总结了目前的遗传方面的信号网络的基础上的花发育的过程。
Flower development can be divided into four major steps: phase transition from vegetative to reproductive growth, formation of inflorescence meristem, formation and identity determination of floral organs, and growth and maturation of floral organs. Intercellular and intracellular signalling mechanisms must have important roles in each step of flower development, because it requires cell division, cell growth, and cell differentiation in a concerted fashion. Molecular genetic analysis of the process has started by isolation of a series of mutants with unusual flowering time, with aberrant structure in inflorescence and in flowers, and with no self-fertilization. At present more than 60 genes are identified fromArabidopsis thalianaand some of them have cloned. Although the information is still limited, several types of signalling systems are revealed. In this review, we summarize the present genetic aspects of the signalling network underlying the processes of flower development.