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Updated: Jun 20, 2026
09:17
Whole-mount Clearing and Staining of Arabidopsis Flower Organs and Siliques
Published on: April 12, 2018
AGAMOUS Coordinates Flower Development Beyond Organ Identity: AGAMOUS Coordinates Flower Development in Space and
Koki Nakamura1, Nobutoshi Yamaguchi1, Toshiro Ito1
1Division of Biological Science, Graduate School of Science and Technology, Nara Institute of Science and Technology, 8916-5, Takayama, Ikoma, Nara 630-0192, Japan.
Plant & Cell Physiology
|June 19, 2026
Summary
AGAMOUS (AG) is a MADS-box transcription factor. It coordinates late flower development, linking organ identity to maturation and senescence through complex regulatory networks.
Area of Science:
- Plant developmental biology
- Molecular genetics
- Floral development
Background:
- AGAMOUS (AG) is a key MADS-box transcription factor regulating floral organ identity and meristem determinacy.
- Emerging evidence reveals AG's broader roles in late developmental programs, influenced by tissue context, epigenetics, and hormones.
Purpose of the Study:
- To review recent advances in AG-mediated regulatory networks.
- To highlight AG's role in orchestrating late flower development across multiple organs.
Main Methods:
- Literature review of AGAMOUS research.
- Analysis of AG's regulatory targets and pathways.
- Integration of epigenetic and hormonal signaling data.
Main Results:
- AG regulates gynoecium patterning, ovule/fruit development, and epidermal cell fate.
- In stamens, AG integrates epigenetic timing (H3K27me3 dilution) with jasmonic acid signaling for filament and anther development.
- AG influences perianth senescence and abscission non-cell-autonomously via jasmonic acid signaling.
Conclusions:
- AG acts as a spatiotemporal systems regulator, connecting organ identity to morphogenesis, maturation, and organ disposal.
- Dynamic, multilayered control by AG orchestrates complex late flower development.
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