Stepwise selection on homeologous PRR genes controlling flowering and maturity during soybean domestication.

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ID: 102433
2020
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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.
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lu2020stepwisenature Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Lu, Sijia;Dong, Lidong;Fang, Chao;Liu, Shulin;Kong, Lingping;Cheng, Qun;Chen, Liyu;Su, Tong;Nan, Haiyang;Zhang, Dan;Zhang, Lei;Wang, Zhijuan;Yang, Yongqing;Yu, Deyue;Liu, Xiaolei;Yang, Qingyong;Lin, Xiaoya;Tang, Yang;Zhao, Xiaohui;Yang, Xinquan;Tian, Changen;Xie, Qiguang;Li, Xia;Yuan, Xiaohui;Tian, Zhixi;Liu, Baohui;Weller, James L;Kong, Fanjiang;
Journal nature genetics
Year 2020
DOI
10.1038/s41588-020-0604-7
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