Nature Genetics
Abstract
Adaptive changes in plant phenology are often considered to be a feature of the so-called ‘domestication syndrome’ that distinguishes modern crops from their wild progenitors, but little detailed evidence supports this idea. In soybean, a major legume crop, flowering time variation is well characterized within domesticated germplasm and is critical for modern production, but its importance during domestication is unclear. Here, we identify sequential contributions of two homeologous pseudo-response-regulator genes, Tof12 and Tof11, to ancient flowering time adaptation, and demonstrate that they act via LHY homologs to promote expression of the legume-specific E1 gene and delay flowering under long photoperiods. We show that Tof12-dependent acceleration of maturity accompanied a reduction in dormancy and seed dispersal during soybean domestication, possibly predisposing the incipient crop to latitudinal expansion. Better understanding of this early phase of crop evolution will help to identify functional variation lost during domestication and exploit its potential for future crop improvement.
| 论文编号: | DOI:10.1038/s41588-020-0604-7 |
| 论文题目: | Stepwise Selection on Homeologous PRR Genes Controlling Flowering and Maturity During Soybean Domestication |
| 英文论文题目: | Stepwise Selection on Homeologous PRR Genes Controlling Flowering and Maturity During Soybean Domestication |
| 第一作者: | Sijia Lu, Lidong Dong, Chao Fang, Shulin Liu, Lingping Kong, Qun Cheng, Liyu Chen, Tong Su, Haiyang Nan, Dan Zhang, Lei Zhang, Zhijuan Wang, Yongqing Yang, Deyue Yu, Xiaolei Liu, Qingyong Yang, Xiaoya Lin, Yang Tang, Xiaohui Zhao, Xinquan Yang, Changen Tian, Qiguang Xie, Xia Li, Xiaohui Yuan, Zhixi Tian, Baohui Liu, James L. Weller & Fanjiang Kong |
| 英文第一作者: | Sijia Lu, Lidong Dong, Chao Fang, Shulin Liu, Lingping Kong, Qun Cheng, Liyu Chen, Tong Su, Haiyang Nan, Dan Zhang, Lei Zhang, Zhijuan Wang, Yongqing Yang, Deyue Yu, Xiaolei Liu, Qingyong Yang, Xiaoya Lin, Yang Tang, Xiaohui Zhao, Xinquan Yang, Changen Tian, Qiguang Xie, Xia Li, Xiaohui Yuan, Zhixi Tian, Baohui Liu, James L. Weller & Fanjiang Kong |
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| 发表年度: | 2020-03-31 |
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| 摘要: | Adaptive changes in plant phenology are often considered to be a feature of the so-called ‘domestication syndrome’ that distinguishes modern crops from their wild progenitors, but little detailed evidence supports this idea. In soybean, a major legume crop, flowering time variation is well characterized within domesticated germplasm and is critical for modern production, but its importance during domestication is unclear. Here, we identify sequential contributions of two homeologous pseudo-response-regulator genes, Tof12 and Tof11, to ancient flowering time adaptation, and demonstrate that they act via LHY homologs to promote expression of the legume-specific E1 gene and delay flowering under long photoperiods. We show that Tof12-dependent acceleration of maturity accompanied a reduction in dormancy and seed dispersal during soybean domestication, possibly predisposing the incipient crop to latitudinal expansion. Better understanding of this early phase of crop evolution will help to identify functional variation lost during domestication and exploit its potential for future crop improvement. |
| 英文摘要: | Adaptive changes in plant phenology are often considered to be a feature of the so-called ‘domestication syndrome’ that distinguishes modern crops from their wild progenitors, but little detailed evidence supports this idea. In soybean, a major legume crop, flowering time variation is well characterized within domesticated germplasm and is critical for modern production, but its importance during domestication is unclear. Here, we identify sequential contributions of two homeologous pseudo-response-regulator genes, Tof12 and Tof11, to ancient flowering time adaptation, and demonstrate that they act via LHY homologs to promote expression of the legume-specific E1 gene and delay flowering under long photoperiods. We show that Tof12-dependent acceleration of maturity accompanied a reduction in dormancy and seed dispersal during soybean domestication, possibly predisposing the incipient crop to latitudinal expansion. Better understanding of this early phase of crop evolution will help to identify functional variation lost during domestication and exploit its potential for future crop improvement. |
| 刊物名称: | Nature Genetics |
| 英文刊物名称: | Nature Genetics |
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| 其它备注: | Sijia Lu, Lidong Dong, Chao Fang, Shulin Liu, Lingping Kong, Qun Cheng, Liyu Chen, Tong Su, Haiyang Nan, Dan Zhang, Lei Zhang, Zhijuan Wang, Yongqing Yang, Deyue Yu, Xiaolei Liu, Qingyong Yang, Xiaoya Lin, Yang Tang, Xiaohui Zhao, Xinquan Yang, Changen Tian, Qiguang Xie, Xia Li, Xiaohui Yuan, Zhixi Tian, Baohui Liu, James L. Weller & Fanjiang Kong. Stepwise Selection on Homeologous PRR Genes Controlling Flowering and Maturity During Soybean Domestication. Nature Genetics. DOI:10.1038/s41588-020-0604-7 |
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