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TOPLESS Regulates Apical Embryonic Fate in Arabidopsis
Abstract
The embryos of seed plants develop with an apical shoot pole and a basal root pole. In Arabidopsis , the topless-1 ( tpl-1 ) mutation transforms the shoot pole into a second root pole. Here, we show that TPL resembles known transcriptional corepressors and that tpl-1 acts as a dominant negative mutation for multiple TPL-related proteins. Mutations in the putative coactivator HISTONE ACETYLTRANSFERASE GNAT SUPERFAMILY1 suppress the tpl-1 phenotype. Mutations in HISTONE DEACETYLASE19 , a putative corepressor, increase the penetrance of tpl-1 and display similar apical defects. These data point to a transcriptional repression mechanism that prevents root formation in the shoot pole during Arabidopsis embryogenesis.
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Cites
Transcription-linked acetylation by Gcn5p of histones H3 and H4 at specific lysines
Kuo, M.-H., Brownell, J. E., Sobel, R. E., Ranalli, T. A., Cook, R. G., Edmondson, D. G., Roth, S. Y., & Allis, C. D. (1996) · Nature · doi:10.1038/383269a0 · Cited by 596
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Kazan, K., & Manners, J. M. (2013) · Molecular Plant · doi:10.1093/mp/sss128 · Cited by 1,081
DWARF 53 acts as a repressor of strigolactone signalling in rice
Jiang, L., Liu, X., Xiong, G., Liu, H., Chen, F., Wang, L., Meng, X., Liu, G., Yu, H., Yuan, Y., et al. (2013) · Nature · doi:10.1038/nature12870 · Cited by 868
The JAZ Proteins: A Crucial Interface in the Jasmonate Signaling Cascade
Pauwels, L., & Goossens, A. (2011) · The Plant Cell · doi:10.1105/tpc.111.089300 · Cited by 710
SCFTIR1/AFB-Based Auxin Perception: Mechanism and Role in Plant Growth and Development
Salehin, M., Bagchi, R., & Estelle, M. (2015) · The Plant Cell · doi:10.1105/tpc.114.133744 · Cited by 462
Metadata
- Authors
- Long, J. A., Ohno, C., Smith, Z. R., & Meyerowitz, E. M.
- Venue
- Science
- Published
- 2006-06-09
- Volume
- 312
- Issue
- 5779
- Pages
- 1520-1523
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2137652453
- Cited by
- 505
- References
- 1
- FWCI
- 25.56
- Type
- journal article
- Language
- en
- Open access
- closed
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- Long, J. A., Ohno, C., Smith, Z. R., & Meyerowitz, E. M. (2006). TOPLESS Regulates Apical Embryonic Fate in Arabidopsis. Science. https://doi.org/10.1126/science.1123841
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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