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RICE CENTRORADIALIS 1, a TFL1-like Gene, Responses to Drought Stress and Regulates Rice Flowering Transition.
- Source :
- Rice (19398425); 9/24/2020, Vol. 13 Issue 1, pN.PAG-N.PAG, 1p
- Publication Year :
- 2020
-
Abstract
- Background: The initiation of flowering transition in rice (Oryza sativa) is a complex process regulated by genes and environment. In particular, drought can interfere with flowering; therefore, many plants hasten this process to shorten their life cycle under water scarcity, and this is known as drought-escape response. However, rice has other strategies; for example, drought stress can delay flowering instead of accelerating it. RICE CENTRORADIALIS 1 (RCN1) is a TERMINAL FLOWER-like gene that influences rice flowering transition and spike differentiation. It interacts with 14–3-3 proteins and transcription factor OsFD1 to form a florigen repression complex that suppresses flowering transition in rice. Results: In this study, we explored the role of RCN1 in the molecular pathway of drought-regulated flowering transition. The rcn1 mutant plants displayed early heading under both normal water and drought stress conditions, and they were more insensitive to drought stress than the wild-type plants. Abscisic acid (ABA) signaling-mediated drought-induced RCN1 is involved in this process. Conclusions: Thus, RCN1 plays an important role in the process of drought stress inhibiting flowering transition. It may worked by suppressing the protein function rather than transcription of HEADING DATE 3a. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19398425
- Volume :
- 13
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Rice (19398425)
- Publication Type :
- Academic Journal
- Accession number :
- 146054303
- Full Text :
- https://doi.org/10.1186/s12284-020-00430-3