Flower and fruit development in Arabidopsis thaliana
Flower and fruit development in Arabidopsis thaliana
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DOI：
10.1387/ijdb.052020pr
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发表时间：
2005-01-01
影响因子：
0.7
通讯作者：
Pelaz, S
中科院分区：
文献类型：
--
作者：
Robles, P;Pelaz, S
花发育的研究在过去的15年里取得了很大的进展。最重要的里程碑是ABC模型的提出，其中重叠活动的三种不同功能解释了真双子叶植物花的四个器官环的发育。最有趣的是，近年来，这个简单而优雅的模型已被广泛接受，并适用于广泛的植物物种。然而，最近的进展，蛋白质相互作用的表征和SEPALLATA基因的发现，需要适当的花器官发育导致了ABC模型的修订。广泛接受的花四重奏模型，其中包括新的SEPALLATA功能，假设一个特定的花器官的发展是通过形成一个单一的复合物的不同MADS盒蛋白。花的最终命运是变成果实，确保种子的传播，从而确保物种的生存。拟南芥果实是角果或豆荚。只有在过去的五年里，在建立果实开放所需的组织分化方面取得了重要进展：瓣裂边缘和开裂区。经典的遗传学分析和分子生物学方法已经指出转录因子SHP、ALC和IND参与这些组织的形成，并且FUL和RPL分别参与抑制边缘组织、瓣膜和生殖腺中的这种身份。
The study of flower development has experienced great advances over the last 15 years. The most important landmark was the proposal of the ABC model in which three different functions of overlapping activities account for the development of the four rings of organs of the eudicot flower. Most interestingly, during recent years this simple and elegant model has been broadly accepted and is applicable to a wide range of plant species. However, recent advances in the characterization of protein interactions and the discovery of the SEPALLATA genes that are required for proper floral organ development have led to a revision of the ABC model. The largely accepted floral quartet model, which includes the new SEPALLATA function, postulates that the development of a specific floral organ is achieved by the formation of a single complex of different MADS-box proteins. The ultimate fate of the flower is to become a fruit, ensuring dispersal of the seeds and therefore survival of the species. The Arabidopsis fruit is a silique or pod. Only in the last five years important advances have been made in establishing the differentiation of the tissues required for the opening of the fruit: the valve margins and dehiscence zone. Classical genetic analyses and molecular biology approaches have pointed to the involvement of the transcription factors SHP, ALC and IND in the formation of these tissues and of FUL and RPL in repressing this identity in the bordering tissues, valves and replum, respectively.