Journal
CELL
Volume 105, Issue 6, Pages 793-803Publisher
CELL PRESS
DOI: 10.1016/S0092-8674(01)00384-1
Keywords
-
Categories
Funding
- NIGMS NIH HHS [GM07240-24] Funding Source: Medline
Ask authors/readers for more resources
The homeotic gene AGAMOUS (AG) has dual roles in specifying organ fate and limiting stem cell proliferation in Arabidopsis flowers. We show that the floral identity protein LEAFY (LPI), a transcription factor expressed throughout the flower, cooperates with the homeodomain protein WUSCHEL (WUS) to activateAG in the center of flowers. WUS was previously identified because of its role in maintaining stem cell populations in both shoot and floral meristems. The unsuspected additional role of WUS in regulating floral homeotic gene expression supports the hypothesis that floral patterning uses a general meristem patterning system that was present before flowers evolved. We also show that AG represses WUS at later stages of floral development, thus creating a negative feedback loop that is required for the determinate growth of floral meristems.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available