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Separable Whorl-Specific Expression and Negative Regulation by Enhancer Elements within the AGAMOUS Second Intron
Open accessAbstract
We analyzed the 4-kb intragenic control region of the AGAMOUS (AG) gene to gain insight into the mechanisms controlling its expression during early flower development. We identified three major expression patterns conferred by 19 AG::reporter gene constructs: the normal AG pattern, a stamen-specific pattern, and a predominantly carpel pattern. To determine whether these three expression patterns were under negative control by APETALA2 (AP2) or LEUNIG (LUG), we analyzed beta-glucuronidase staining patterns in Arabidopsis plants homozygous for strong ap2 and lug mutations. Our results indicated that the stamen-specific pattern was independent of AP2 but dependent on LUG; conversely, the carpel-specific pattern was independent of LUG but dependent on AP2. These results lead to a model of control of AG expression such that expression in each of the two inner whorls is under independent positive and negative control.
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Cites
Early flower development in Arabidopsis.
Smyth, D. R., Bowman, J. L., & Meyerowitz, E. M. (1990) · The Plant Cell · doi:10.1105/tpc.2.8.755 · Cited by 2,155
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Alvarez-Buylla, E. R., Benítez, M., Corvera-Poiré, A., Chaos Cador, Á., de Folter, S., Gamboa de Buen, A., Garay-Arroyo, A., García-Ponce, B., Jaimes-Miranda, F., Pérez-Ruiz, R. V., et al. (2010) · The Arabidopsis Book · doi:10.1199/tab.0127 · Cited by 298
Metadata
- Authors
- Deyholos, M. K., & Sieburth, L. E.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2000-10
- Volume
- 12
- Issue
- 10
- Pages
- 1799-1810
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2121150295
- Cited by
- 193
- References
- 1
- FWCI
- 11.44
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Separable Whorl-Specific Expression and Negative Regulation by Enhancer Elements within the AGAMOUS Second Intron. https://app.cochat.ai/papers/10.1105/tpc.12.10.1799
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- Deyholos, M. K., & Sieburth, L. E. (2000). Separable Whorl-Specific Expression and Negative Regulation by Enhancer Elements within the AGAMOUS Second Intron. The Plant Cell. https://doi.org/10.1105/tpc.12.10.1799
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
