Bradley D, Carpenter R, Copsey L, Vincent C, Rothstein S, Coen E
Genetics Department, John Innes Centre, Norwich, UK.
Nature. 1996 Feb 29;379(6568):791-7. doi: 10.1038/379791a0.
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-meristem-identity 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.
有限花序和无限花序。辐射状中央花突变导致金鱼草正常的无限花序以一朵花结束。我们发现，辐射状中央花在花诱导后几天在花序顶端表达，并与花分生组织特性基因花椰菜相互作用，以调节花的位置和形态。蛋白质CEN与动物中与脂质和GTP结合蛋白相关的蛋白质相似。我们提出了一个模型，说明不同的花序结构可能如何通过辐射状中央花的作用和进化而产生。
