| 论文编号: | |
| 论文题目: | Natural variation at the soybean J locus improves adaptation to the tropics and enhances yield |
| 英文论文题目: | Natural variation at the soybean J locus improves adaptation to the tropics and enhances yield |
| 第一作者: | 芦思佳 赵晓晖 胡一龙 刘书林 南海洋 |
| 英文第一作者: | Lu, S. J.;Zhao, X. H.;Hu, Y. L.;Liu, S. L.;Nan, H. Y. |
| 联系作者: | 刘宝辉 侯兴亮 田志喜 孔凡江 |
| 英文联系作者: | Liu, B. H.;Hou, X. L.;Tian, Z. X.;Kong, F. J. |
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| 发表年度: | 2017 |
| 卷: | 49 |
| 期: | 5 |
| 页码: | 773-779 |
| 摘要: | Soybean is a major legume crop originating in temperate regions, and photoperiod responsiveness is a key factor in its latitudinal adaptation. Varieties from temperate regions introduced to lower latitudes mature early and have extremely low grain yields. Introduction of the long-juvenile (LJ) trait extends the vegetative phase and improves yield under short-day conditions, thereby enabling expansion of cultivation in tropical regions. Here we report the cloning and characterization of J, the major classical locus conferring the LJ trait, and identify J as the ortholog of Arabidopsis thaliana EARLY FLOWERING 3 (ELF3). J depends genetically on the legume-specific flowering repressor E1, and J protein physically associates with the E1 promoter to downregulate its transcription, relieving repression of two important FLOWERING LOCUS T (FT) genes and promoting flowering under short days. Our findings identify an important new component in flowering-time control in soybean and provide new insight into soybean adaptation to tropical regions. |
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| 刊物名称: | Nature Genetics |
| 英文刊物名称: | Nature Genetics |
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Natural variation at the soybean J locus improves adaptation to the tropics and enhances yield
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