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Reference Detail
| Reference | ||
|---|---|---|
| Author | Gao H., Jin M., Zheng X.M., Chen J., Yuan D., Xin Y., Wang M., Huang D., Zhang Z., Zhou K., Sheng P., Ma J., Ma W., Deng H., Jiang L., Liu S., Wang H., Wu C., Yuan L., Wan J. | |
| Title | Days to heading 7, a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice. | |
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Abstract: Success of modern agriculture relies heavily on breeding of crops with maximal regional adaptability and yield potentials. A major limiting factor for crop cultivation is their flowering time, which is strongly regulated by day length (photoperiod) and temperature. Here we report identification and characterization of Days to heading 7 (DTH7), a major genetic locus underlying photoperiod sensitivity and grain yield in rice. Map-based cloning reveals that DTH7 encodes a pseudo-response regulator protein and its expression is regulated by photoperiod. We show that in long days DTH7 acts downstream of the photoreceptor phytochrome B to repress the expression of Ehd1, an up-regulator of the "florigen" genes (Hd3a and RFT1), leading to delayed flowering. Further, we find that haplotype combinations of DTH7 with Grain number, plant height, and heading date 7 (Ghd7) and DTH8 correlate well with the heading date and grain yield of rice under different photoperiod conditions. Our data provide not only a macroscopic view of the genetic control of photoperiod sensitivity in rice but also a foundation for breeding of rice cultivars better adapted to the target environments using rational design. |
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| Journal | Proc. Natl. Acad. Sci. U.S.A. | |
| Country | China | |
| Volume | ||
| Pages | ||
| Year | 2014 | |
| PubMed ID | 25378698 | |
| PubMed Central ID | - | |
| DOI | 10.1073/pnas.1418204111 | |
| URL | - | |
| Relation | ||
| Gene | EF1 GHD7 HD2 HD3A HD5 PHYB RFT1 | |
| INSD | KF977869 KF815740 KF977867 KF977868 | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
