|
|
|
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
Waksman Institute, Rutgers, the State University of New Jersey, 190 Frelinghuysen Road, Piscataway, NJ 08854, USA
*Author for correspondence (e-mail: xuemei{at}waksman.rutgers.edu)
Accepted 11 December 2001
Four classes of floral homeotic MADS domain proteins specify the identities of the four organ types in an Arabidopsis flower. While the activities of the MADS domain proteins are essentially confined to the flower or to the inflorescence, several genes, such as APETALA2, HUA1 and HUA2, also act outside the flower in addition to their organ identity functions inside the flower. We identified a new gene, HUA ENHANCER 1 (HEN1) from a sensitized genetic screen in the hua1-1 hua2-1 background that is compromised in floral homeotic C function. We showed that HEN1, like the C function gene AGAMOUS, acts to specify reproductive organ identities and to repress A function. HEN1 also shares AG’s non-homeotic function in controlling floral determinacy. HEN1 may achieve these functions by regulating the expression of AG. hen1 single mutants exhibit pleiotropic phenotypes such as reduced organ size, altered rosette leaf shape and increased number of coflorescences, during most stages of development. Therefore, HEN1, like the A function gene AP2, plays multiple roles in plant development as well as acting in organ identity specification in the flower. HEN1 codes for a novel protein and is expressed throughout the plant.
Key words: Flower development, Organ identity, C function, HUA1, HUA2, HEN1, AGAMOUS
This article has been cited by other articles:
|
|
 |
|
  B. Yu, L. Bi, B. Zheng, L. Ji, D. Chevalier, M. Agarwal, V. Ramachandran, W. Li, T. Lagrange, J. C. Walker, et al. The FHA domain proteins DAWDLE in Arabidopsis and SNIP1 in humans act in small RNA biogenesis PNAS, July 22, 2008; 105(29): 10073 - 10078. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 S. E. Abdel-Ghany and M. Pilon MicroRNA-mediated Systemic Down-regulation of Copper Protein Expression in Response to Low Copper Availability in Arabidopsis J. Biol. Chem., June 6, 2008; 283(23): 15932 - 15945. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. Eamens, M.-B. Wang, N. A. Smith, and P. M. Waterhouse RNA Silencing in Plants: Yesterday, Today, and Tomorrow Plant Physiology, June 1, 2008; 147(2): 456 - 468. [Full Text] [PDF]
|
|
|
|
|
|
S.-I Lin, S.-F. Chiang, W.-Y. Lin, J.-W. Chen, C.-Y. Tseng, P.-C. Wu, and T.-J. Chiou Regulatory Network of MicroRNA399 and PHO2 by Systemic Signaling Plant Physiology, June 1, 2008; 147(2): 732 - 746. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. F. Degenhardt and P. C. Bonham-Smith Arabidopsis Ribosomal Proteins RPL23aA and RPL23aB Are Differentially Targeted to the Nucleolus and Are Disparately Required for Normal Development Plant Physiology, May 1, 2008; 147(1): 128 - 142. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Yamaguchi, M. Suzuki, H. Fukaki, M. Morita-Terao, M. Tasaka, and Y. Komeda CRM1/BIG-Mediated Auxin Action Regulates Arabidopsis Inflorescence Development Plant Cell Physiol., September 1, 2007; 48(9): 1275 - 1290. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. Saito, Y. Sakaguchi, T. Suzuki, T. Suzuki, H. Siomi, and M. C. Siomi Pimet, the Drosophila homolog of HEN1, mediates 2'-O-methylation of Piwi- interacting RNAs at their 3' ends Genes & Dev., July 1, 2007; 21(13): 1603 - 1608. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 Y. Ueno, T. Ishikawa, K. Watanabe, S. Terakura, H. Iwakawa, K. Okada, C. Machida, and Y. Machida Histone Deacetylases and ASYMMETRIC LEAVES2 Are Involved in the Establishment of Polarity in Leaves of Arabidopsis PLANT CELL, February 1, 2007; 19(2): 445 - 457. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. Bove, C. L.H. Hord, and M. A. Mullen The blossoming of RNA biology: Novel insights from plant systems RNA, December 1, 2006; 12(12): 2035 - 2046. [Full Text] [PDF]
|
|
|
|
|
|
M. Arteaga-Vazquez, J. Caballero-Perez, and J.-P. Vielle-Calzada A Family of MicroRNAs Present in Plants and Animals PLANT CELL, December 1, 2006; 18(12): 3355 - 3369. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Potuschak, A. Vansiri, B. M. Binder, E. Lechner, R. D. Vierstra, and P. Genschik The Exoribonuclease XRN4 Is a Component of the Ethylene Response Pathway in Arabidopsis PLANT CELL, November 1, 2006; 18(11): 3047 - 3057. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. Vaucheret Post-transcriptional small RNA pathways in plants: mechanisms and regulations. Genes & Dev., April 1, 2006; 20(7): 759 - 771. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. Mlotshwa, S. E. Schauer, T. H. Smith, A. C. Mallory, J.M. Herr Jr., B. Roth, D. S. Merchant, A. Ray, L. H. Bowman, and V. B. Vance Ectopic DICER-LIKE1 Expression in P1/HC-Pro Arabidopsis Rescues Phenotypic Anomalies but Not Defects in MicroRNA and Silencing Pathways PLANT CELL, November 1, 2005; 17(11): 2873 - 2885. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. Baumberger and D. C. Baulcombe Arabidopsis ARGONAUTE1 is an RNA Slicer that selectively recruits microRNAs and short interfering RNAs PNAS, August 16, 2005; 102(33): 11928 - 11933. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Liu, Y. He, R. Amasino, and X. Chen siRNAs targeting an intronic transposon in the regulation of natural flowering behavior in Arabidopsis Genes & Dev., December 1, 2004; 18(23): 2873 - 2878. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 P. Laufs, A. Peaucelle, H. Morin, and J. Traas MicroRNA regulation of the CUC genes is required for boundary size control in Arabidopsis meristems Development, September 1, 2004; 131(17): 4311 - 4322. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. V. REVERDATTO, J. A. DUTKO, J. A. CHEKANOVA, D. A. HAMILTON, and D. A. BELOSTOTSKY mRNA deadenylation by PARN is essential for embryogenesis in higher plants RNA, August 1, 2004; 10(8): 1200 - 1214. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Sunkar and J.-K. Zhu Novel and Stress-Regulated MicroRNAs and Other Small RNAs from Arabidopsis PLANT CELL, August 1, 2004; 16(8): 2001 - 2019. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. Wang and X. Chen HUA ENHANCER3 reveals a role for a cyclin-dependent protein kinase in the specification of floral organ identity in Arabidopsis Development, July 1, 2004; 131(13): 3147 - 3156. [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]
|
|
|
|
 |
|
 X. Chen A MicroRNA as a Translational Repressor of APETALA2 in Arabidopsis Flower Development Science, March 26, 2004; 303(5666): 2022 - 2025. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 N. Agrawal, P. V. N. Dasaradhi, A. Mohmmed, P. Malhotra, R. K. Bhatnagar, and S. K. Mukherjee RNA Interference: Biology, Mechanism, and Applications Microbiol. Mol. Biol. Rev., December 1, 2003; 67(4): 657 - 685. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. Li and X. Chen PAUSED, a Putative Exportin-t, Acts Pleiotropically in Arabidopsis Development But Is Dispensable for Viability Plant Physiology, August 1, 2003; 132(4): 1913 - 1924. [Abstract] [Full Text] [PDF]
|
|
