Control of inflorescence architecture in Antirrhinum
Abstract
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.
- Publication:
-
Nature
- Pub Date:
- February 1996
- DOI:
- 10.1038/379791a0
- Bibcode:
- 1996Natur.379..791B