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| 著者 | Kuroha T., Nagai K., Gamuyao R., Wang D.R., Furuta T., Nakamori M., Kitaoka T., Adachi K., Minami A., Mori Y., Mashiguchi K., Seto Y., Yamaguchi S., Kojima M., Sakakibara H., Wu J., Ebana K., Mitsuda N., Ohme-Takagi M., Yanagisawa S., Yamasaki M., Yokoyama R., Nishitani K., Mochizuki T., Tamiya G., McCouch S.R., Ashikari M. | |
| タイトル | Ethylene-gibberellin signaling underlies adaptation of rice to periodic flooding. | |
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Abstract: Most plants do poorly when flooded. Certain rice varieties, known as deepwater rice, survive periodic flooding and consequent oxygen deficiency by activating internode growth of stems to keep above the water. Here, we identify the gibberellin biosynthesis gene, <i>SD1</i> (<i>SEMIDWARF1</i>), whose loss-of-function allele catapulted the rice Green Revolution, as being responsible for submergence-induced internode elongation. When submerged, plants carrying the deepwater rice-specific <i>SD1</i> haplotype amplify a signaling relay in which the <i>SD1</i> gene is transcriptionally activated by an ethylene-responsive transcription factor, OsEIL1a. The SD1 protein directs increased synthesis of gibberellins, largely GA4, which promote internode elongation. Evolutionary analysis shows that the deepwater rice-specific haplotype was derived from standing variation in wild rice and selected for deepwater rice cultivation in Bangladesh. |
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| 掲載誌 | Science | |
| Country | unknown | |
| 刊数 | 361(6398) | |
| ページ | 181-186 | |
| 発刊年 | 2018 | |
| PubMed ID | 30002253 | |
| PubMed Central ID | - | |
| DOI | 10.1126/science.aat1577 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | EIL1 SD1 | |
| INSD | - | |
| 系統 |
野生イネ コアコレクション |
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| 突然変異系統(遺伝研 Collection) | - | |
| 種子不稔系統 | - | |
| 致死変異体系統 | - | |
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組織別発生段階 - 突然変異系統(遺伝子) |
- | |
| 栽培イネ品種(遺伝研 Collection) | - | |
| 組織別発生段階 | - | |
