The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.
A gene network for long-day flowering activates RFT1 encoding a mobile flowering signal in rice
Abstract
Although some genes that encode sensory or regulatory elements for photoperiodic flowering are conserved between the long-day (LD) plant Arabidopsis thaliana and the short-day (SD) plant rice, the gene networks that control rice flowering, and particularly flowering under LD conditions, are not well understood. We show here that RICE FLOWERING LOCUS T 1 (RFT1), the closest homolog to Heading date 3a (Hd3a), is a major floral activator under LD conditions. An RFT1:GFP fusion protein localized in the shoot apical meristem (SAM) under LD conditions, suggesting that RFT1 is a florigen gene in rice. Furthermore, mutants in OsMADS50, a rice ortholog of Arabidopsis SUPPRESOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1) did not flower up to 300 days after sowing under LD conditions, indicating that OsMADS50, which acts upstream of RFT1, promotes flowering under LD conditions. We propose that both positive (OsMADS50 and Ehd1) and negative (Hd1, phyB and Ghd7) regulators of RFT1 form a gene network that regulates LD flowering in rice. Among these regulators, Ehd1, a rice-specific floral inducer,integrates multiple pathways to regulate RFT1, leading to flowering under appropriate photoperiod conditions. A rice ortholog of Arabidopsis APETALA1, OsMADS14, was expressed in the floral meristem in wild-type but not in RFT1 RNAi plants, suggesting that OsMADS14 is activated by RFT1 protein in the SAM after the transition to flowering. We have thus exposed a network of genes that regulate LD flowering in rice.
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Cites
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FT Protein Movement Contributes to Long-Distance Signaling in Floral Induction of Arabidopsis
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FD, a bZIP Protein Mediating Signals from the Floral Pathway Integrator FT at the Shoot Apex
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Natural variation in Ghd7 is an important regulator of heading date and yield potential in rice
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Integration of Spatial and Temporal Information During Floral Induction in Arabidopsis
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Distinct Roles of CONSTANS Target Genes in Reproductive Development of Arabidopsis
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Hd3a protein is a mobile flowering signal in rice
Tamaki, S., Matsuo, S., Wong, H. L., Yokoi, S., & Shimamoto, K. (2007) · Science · doi:10.1126/science.1141753 · Cited by 1,248
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Cited by
Yan, W.-H., Wang, P., Chen, H.-X., Zhou, H.-J., Li, Q.-P., Wang, C.-R., Ding, Z.-H., Zhang, Y.-S., Yu, S.-B., Xing, Y.-Z., et al. (2011) · Molecular Plant · doi:10.1093/mp/ssq070 · Cited by 585
The multifaceted roles of FLOWERING LOCUS T in plant development
PIN, P. A., & NILSSON, O. (2012) · Plant, Cell & Environment · doi:10.1111/j.1365-3040.2012.02558.x · Cited by 384
Gao, H., Jin, M., Zheng, X.-M., Chen, J., Yuan, D., Xin, Y., Wang, M., Huang, D., Zhang, Z., Zhou, K., et al. (2014) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1418204111 · Cited by 305
The Complex Interactions Between Flowering Behavior and Fiber Quality in Hemp
Salentijn, E. M. J., Petit, J., & Trindade, L. M. (2019) · Frontiers in Plant Science · doi:10.3389/fpls.2019.00614 · Cited by 107
Metadata
- Authors
- Komiya, R., Yokoi, S., & Shimamoto, K.
- Venue
- Development
- Publisher
- The Company of Biologists
- Published
- 2009-10-15
- Volume
- 136
- Issue
- 20
- Pages
- 3443-3450
- ISSN
- 0950-1991 (ISSN-L)
- 1477-9129
- OpenAlex
- W2164315927
- Cited by
- 417
- References
- 40
- FWCI
- 24.18
- Type
- journal article
- Language
- en
- Open access
- closed
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