THE PLANT CELL, Vol 7, Issue 9 1501-1510, Copyright © 1995 by American Society of Plant Biologists

RESEARCH ARTICLES

Parallels between UNUSUAL FLORAL ORGANS and FIMBRIATA, Genes Controlling Flower Development in Arabidopsis and Antirrhinum

G. C. Ingram, J. Goodrich, M. D. Wilkinson, R. Simon, G. W. Haughn and E. S. Coen
John Innes Centre, Colney Lane, Norwich, NR4 7UH, United Kingdom

The unusual floral organs (ufo) mutant of Arabidopsis has flowers with variable homeotic organ transformations and inflorescence-like characteristics. To determine the relationship between UFO and previously characterized meristem and organ identity genes, we cloned UFO and determined its expression pattern. The UFO gene shows extensive homology with FIMBRIATA (FIM), a gene mediating between meristem and organ identity genes in Antirrhinum. All three UFO mutant alleles that we sequenced are predicted to produce truncated proteins. UFO transcripts were first detected in early floral meristems, before organ identity genes had been activated. At later developmental stages, UFO expression is restricted to the junction between sepal and petal primordia. Phenotypic, genetic, and expression pattern comparisons between UFO and FIM suggest that they are cognate homologs and play a similar role in mediating between meristem and organ identity genes. However, some differences in the functions and genetic interactions of UFO and FIM were apparent, indicating that changes in partially redundant pathways have occurred during the evolutionary divergence of Arabidopsis and Antirrhinum.

This article has been cited by other articles:

				E. Souer, A. B. Rebocho, M. Bliek, E. Kusters, R. A.M. de Bruin, and R. Koes Patterning of Inflorescences and Flowers by the F-Box Protein DOUBLE TOP and the LEAFY Homolog ABERRANT LEAF AND FLOWER of Petunia PLANT CELL, August 1, 2008; 20(8): 2033 - 2048. [Abstract] [Full Text] [PDF]

				E. Chae, Q. K.-G. Tan, T. A. Hill, and V. F. Irish An Arabidopsis F-box protein acts as a transcriptional co-factor to regulate floral development Development, April 1, 2008; 135(7): 1235 - 1245. [Abstract] [Full Text] [PDF]

				R. Benlloch, A. Berbel, A. Serrano-Mislata, and F. Madueno Floral Initiation and Inflorescence Architecture: A Comparative View Ann. Bot., September 1, 2007; 100(3): 659 - 676. [Abstract] [Full Text] [PDF]

				M. Endo, N. Mochizuki, T. Suzuki, and A. Nagatani CRYPTOCHROME2 in Vascular Bundles Regulates Flowering in Arabidopsis PLANT CELL, January 1, 2007; 19(1): 84 - 93. [Abstract] [Full Text] [PDF]

				B. J. Ferguson and J. B. Reid Cochleata: Getting to the Root of Legume Nodules Plant Cell Physiol., September 1, 2005; 46(9): 1583 - 1589. [Abstract] [Full Text] [PDF]

				A. Berbel, C. Navarro, C. Ferrandiz, L. A. Canas, J.-P. Beltran, and F. Madueno Functional Conservation of PISTILLATA Activity in a Pea Homolog Lacking the PI Motif Plant Physiology, September 1, 2005; 139(1): 174 - 185. [Abstract] [Full Text] [PDF]

				J. E. Aagaard, R. G. Olmstead, J. H. Willis, and P. C. Phillips Duplication of floral regulatory genes in the Lamiales Am. J. Botany, August 1, 2005; 92(8): 1284 - 1293. [Abstract] [Full Text] [PDF]

				G. R. Roberts, G. A. Garoosi, O. Koroleva, M. Ito, P. Laufs, D. J. Leader, M. X. Caddick, J. H. Doonan, and A. B. Tomsett The alc-GR System. A Modified alc Gene Switch Designed for Use in Plant Tissue Culture Plant Physiology, July 1, 2005; 138(3): 1259 - 1267. [Abstract] [Full Text] [PDF]

				Z.-c. Dong, Z. Zhao, C.-w. Liu, J.-h. Luo, J. Yang, W.-h. Huang, X.-h. Hu, T. L. Wang, and D. Luo Floral Patterning in Lotus japonicus Plant Physiology, April 1, 2005; 137(4): 1272 - 1282. [Abstract] [Full Text] [PDF]

				C. Gomez-Mena, S. de Folter, M. M. R. Costa, G. C. Angenent, and R. Sablowski Transcriptional program controlled by the floral homeotic gene AGAMOUS during early organogenesis Development, February 1, 2005; 132(3): 429 - 438. [Abstract] [Full Text] [PDF]

				C. Champagne and N. Sinha Compound leaves: equal to the sum of their parts? Development, September 15, 2004; 131(18): 4401 - 4412. [Abstract] [Full Text] [PDF]

				H. An, C. Roussot, P. Suarez-Lopez, L. Corbesier, C. Vincent, M. Pineiro, S. Hepworth, A. Mouradov, S. Justin, C. Turnbull, et al. CONSTANS acts in the phloem to regulate a systemic signal that induces photoperiodic flowering of Arabidopsis Development, August 1, 2004; 131(15): 3615 - 3626. [Abstract] [Full Text] [PDF]

				T. Jack Molecular and Genetic Mechanisms of Floral Control PLANT CELL, June 1, 2004; 16(suppl_1): S1 - S17. [Full Text] [PDF]

				L. G. HARRISON and P. VON ADERKAS Spatially Quantitative Control of the Number of Cotyledons in a Clonal Population of Somatic Embryos of Hybrid Larch Larix x leptoeuropaea Ann. Bot., April 1, 2004; 93(4): 423 - 434. [Abstract] [Full Text] [PDF]

				D. Zhao, W. Ni, B. Feng, T. Han, M. G. Petrasek, and H. Ma Members of the Arabidopsis-SKP1-like Gene Family Exhibit a Variety of Expression Patterns and May Play Diverse Roles in Arabidopsis Plant Physiology, September 1, 2003; 133(1): 203 - 217. [Abstract] [Full Text] [PDF]

				T. Durfee, J. L. Roe, R. A. Sessions, C. Inouye, K. Serikawa, K. A. Feldmann, D. Weigel, and P. C. Zambryski The F-box-containing protein UFO and AGAMOUS participate in antagonistic pathways governing early petal development in Arabidopsis PNAS, July 8, 2003; 100(14): 8571 - 8576. [Abstract] [Full Text] [PDF]

				X. Wang, S. Feng, N. Nakayama, W. L. Crosby, V. Irish, X. W. Deng, and N. Wei The COP9 Signalosome Interacts with SCFUFO and Participates in Arabidopsis Flower Development PLANT CELL, May 1, 2003; 15(5): 1071 - 1082. [Abstract] [Full Text]

				P. Laufs, E. Coen, J. Kronenberger, J. Traas, and J. Doonan Separable roles of UFO during floral development revealed by conditional restoration of gene function Development, February 15, 2003; 130(4): 785 - 796. [Abstract] [Full Text] [PDF]

				G. Chuck, M. Muszynski, E. Kellogg, S. Hake, and R. J. Schmidt The Control of Spikelet Meristem Identity by the branched silkless1 Gene in Maize Science, November 8, 2002; 298(5596): 1238 - 1241. [Abstract] [Full Text] [PDF]

				J. M. Franco-Zorrilla, P. Cubas, J. A. Jarillo, B. Fernandez-Calvin, J. Salinas, and J. M. Martinez-Zapater AtREM1, a Member of a New Family of B3 Domain-Containing Genes, Is Preferentially Expressed in Reproductive Meristems Plant Physiology, February 1, 2002; 128(2): 418 - 427. [Abstract] [Full Text] [PDF]

				R. S. Lamb, T. A. Hill, Q. K.-G. Tan, and V. F. Irish Regulation of APETALA3 floral homeotic gene expression by meristem identity genes Development, January 5, 2002; 129(9): 2079 - 2086. [Abstract] [Full Text] [PDF]

				Z. Peng, G. Serino, and X.-W. Deng A role of Arabidopsis COP9 signalosome in multifaceted developmental processes revealed by the characterization of its subunit 3 Development, November 1, 2001; 128(21): 4277 - 4288. [Abstract] [Full Text] [PDF]

				Z. Peng, G. Serino, and X.-W. Deng Molecular Characterization of Subunit 6 of the COP9 Signalosome and Its Role in Multifaceted Developmental Processes in Arabidopsis PLANT CELL, November 1, 2001; 13(11): 2393 - 2407. [Abstract] [Full Text] [PDF]

				M. Ng and M. F. Yanofsky Activation of the Arabidopsis B Class Homeotic Genes by APETALA1 PLANT CELL, April 1, 2001; 13(4): 739 - 754. [Abstract] [Full Text]

				H. Sakai, B. A. Krizek, S. E. Jacobsen, and E. M. Meyerowitz Regulation of SUP Expression Identifies Multiple Regulators Involved in Arabidopsis Floral Meristem Development PLANT CELL, September 1, 2000; 12(9): 1607 - 1618. [Abstract] [Full Text]

				T. Honma and K. Goto The Arabidopsis floral homeotic gene PISTILLATA is regulated by discrete cis-elements responsive to induction and maintenance signals Development, May 15, 2000; 127(10): 2021 - 2030. [Abstract] [PDF]

				M Wilkinson, E de Andrade Silva, S Zachgo, H Saedler, and Z Schwarz-Sommer CHORIPETALA and DESPENTEADO: general regulators during plant development and potential floral targets of FIMBRIATA-mediated degradation Development, January 9, 2000; 127(17): 3725 - 3734. [Abstract] [PDF]

				P.-A. Girod, H. Fu, J.-P. Zryd, and R. D. Vierstra Multiubiquitin Chain Binding Subunit MCB1 (RPN10) of the 26S Proteasome Is Essential for Developmental Progression in Physcomitrella patens PLANT CELL, August 1, 1999; 11(8): 1457 - 1472. [Abstract] [Full Text]

				M. Griffith, A da Silva Conceicao, and D. Smyth PETAL LOSS gene regulates initiation and orientation of second whorl organs in the Arabidopsis flower Development, January 12, 1999; 126(24): 5635 - 5644. [Abstract] [PDF]

				S. Pouteau, F. Tooke, and N. Battey Quantitative Control of Inflorescence Formation in Impatiens balsamina Plant Physiology, December 1, 1998; 118(4): 1191 - 1201. [Abstract] [Full Text]

				J. Z. Levin, J. C. Fletcher, X. Chen, and E. M. Meyerowitz A Genetic Screen for Modifiers of UFO Meristem Activity Identifies Three Novel FUSED FLORAL ORGANS Genes Required for Early Flower Development in Arabidopsis Genetics, June 1, 1998; 149(2): 579 - 595. [Abstract] [Full Text] [PDF]

				A. Mouradov, T. Glassick, B. Hamdorf, L. Murphy, B. Fowler, S. Marla, and R. D. Teasdale NEEDLY, a Pinus radiata ortholog of FLORICAULA/LEAFY genes, expressed in both reproductive and vegetative meristems PNAS, May 26, 1998; 95(11): 6537 - 6542. [Abstract] [Full Text] [PDF]

				J. Tilly, D. Allen, and T Jack The CArG boxes in the promoter of the Arabidopsis floral organ identity gene APETALA3 mediate diverse regulatory effects Development, January 5, 1998; 125(9): 1647 - 1657. [Abstract] [PDF]

				T. Hill, C. Day, S. Zondlo, A. Thackeray, and V. Irish Discrete spatial and temporal cis-acting elements regulate transcription of the Arabidopsis floral homeotic gene APETALA3 Development, January 5, 1998; 125(9): 1711 - 1721. [Abstract] [PDF]

				S Hake and B R Char Cell-cell interactions during plant development. Genes & Dev., May 1, 1997; 11(9): 1087 - 1097. [PDF]

				M. Blazquez, L. Soowal, I Lee, and D Weigel LEAFY expression and flower initiation in Arabidopsis Development, January 10, 1997; 124(19): 3835 - 3844. [Abstract] [PDF]