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Natural variation at the soybean J locus improves adaptation to the tropics and enhances yield
Citation
Lu, S and Zhao, X and Hu, Y and Liu, S and Nan, H and Li, X and Fang, C and Cao, D and Shi, X and Kong, L and Su, T and Zhang, F and Li, S and Wang, Z and Yuan, X and Cober, ER and Weller, JL and Liu, B and Hou, X and Tian, Z and Kong, F, Natural variation at the soybean J locus improves adaptation to the tropics and enhances yield, Nature Genetics, 49, (5) pp. 773-779. ISSN 1061-4036 (2017) [Refereed Article]
Copyright Statement
© 2017 Nature America
DOI: doi:10.1038/ng.3819
Abstract
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.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | soybean, J locus, yield, tropics, genetic adaptation, variation, legume crops, ELF3 |
| Research Division: | Biological Sciences |
| Research Group: | Plant biology |
| Research Field: | Plant physiology |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the biological sciences |
| UTAS Author: | Weller, JL (Associate Professor Jim Weller) |
| ID Code: | 117651 |
| Year Published: | 2017 |
| Funding Support: | Australian Research Council (FT120100048) |
| Web of Science® Times Cited: | 202 |
| Deposited By: | Plant Science |
| Deposited On: | 2017-06-22 |
| Last Modified: | 2018-04-30 |
| Downloads: | 0 |
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