Control of inflorescence architecture in Antirrhinum
Control of inflorescence architecture in Antirrhinum
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DOI：
10.1038/379791a0
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发表时间：
1996-02-29
期刊：
影响因子：
64.8
通讯作者：
Coen, E
中科院分区：
文献类型：
--
作者：
Bradley, D;Carpenter, R;Coen, E
开花植物表现出两种类型的花序结构：确定的和不确定的。中心花序突变导致金鱼草通常不确定的花序在花中终止。我们发现，在花诱导几天后，中心花在花序顶端表达，并与花分生组织识别基因floricaula相互作用，调节花的位置和形态。CEN蛋白类似于与脂质和GTP结合蛋白相关的动物蛋白。我们提出了一个模型，说明不同的花序结构是如何通过中心轴的作用和进化而产生的。
Flowering plants exhibit two types of inflorescence architecture: determinate and indeterminate. The centroradialis mutation causes the normally indeterminate inflorescence of Antirrhinum to terminate in a flower. We show that centroradialis is expressed in the inflorescence apex a few days after floral induction, and interacts with the floral-meristemidentity gene floricaula to regulate flower position and morphology. The protein CEN is similar to animal proteins that associate with lipids and GTP-binding proteins. We propose a model for how different inflorescence structures may arise through the action and evolution of centroradialis.