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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Durfee, Tim Serikawa, Kyle Weigel, Detlef Zambryski, Patricia C. Sessions, R. Allen Inouye, Carla Feldmann, Kenneth A. Roe, Judith L. |
| Description | Author Affiliation: Durfee T ( Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA.); |
| Abstract | The UNUSUAL FLORAL ORGANS (UFO) gene is required for multiple processes in the developing Arabidopsis flower, including the proper patterning and identity of both petals and stamens. The gene encodes an F-box-containing protein, UFO, which interacts physically and genetically with the Skp1 homolog, ASK1. In this report, we describe four ufo alleles characterized by the absence of petals, which uncover another role for UFO in promoting second whorl development. This UFO-dependent pathway is required regardless of the second whorl organ to be formed, arguing that it affects a basic process acting in parallel with those establishing organ identity. However, the pathway is dispensable in the absence of AGAMOUS (AG), a known inhibitor of petal development. In situ hybridization results argue that AG is not transcribed in the petal region, suggesting that it acts non-cell-autonomously to inhibit second whorl development in ufo mutants. These results are combined into a genetic model explaining early second whorl initiation/proliferation, in which UFO functions to inhibit an AG-dependent activity. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 14 |
| Volume Number | 100 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2003-07-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | AGAMOUS Protein, Arabidopsis Physiology Arabidopsis Proteins Arabidopsis Growth & Development Transcription Factors Alleles Genetics Chemistry Metabolism Morphogenesis Protein Interaction Mapping Recombinant Fusion Proteins Saccharomyces Cerevisiae Sequence Deletion Transcription, Genetic Two-Hybrid System Techniques Research Support, U.S. Gov't, Non-P.H.S. Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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