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In-House Forecasting of Crop Latitude Adaptation through a Daylength-sensing-based Environment Adaptation Simulator (DEAS)

By Leilei Qiu, Qinqin Wu, Xiaoying Wang, Gui Zhuang, Jiupan Han, Hao Wang, Zhiyun Shang, Wei Tian, Zhuo Chen, Zechuan Lin, Hang He, Jie Hu, Qiming Lv, Juansheng Ren, Jun Xu, Chen Li, Xiangfeng Wang, Yang Li, Shaohua Li, Rongyu Huang, Xu Chen, Cheng Zhang, Ming Lu, Chengzhi Liang, Peng Qin, Xi Huang, Shigui Li, Xinhao Ouyang

Posted 10 Dec 2020
bioRxiv DOI: 10.1101/2020.12.09.418558

Global climate change necessitates the accelerated breeding of new crop varieties that can sustain yields in new environments. As a proxy for environmental adaptation, the selection of crops that can adapt to different latitudes is an appealing strategy. However, such selection currently involves a lengthy procedure that severely restricts the rapid breeding of varieties. Here, we aimed to combine molecular technologies with an in-house streamlined screening method to facilitate rapid selection for latitude adaptation. We established the Daylength-sensing-based Environment Adaptation Simulator (DEAS) to measure crop latitude adaptation via the transcriptional dynamics of florigen genes at different latitudes. We used different statistical approaches to demonstrate that DEAS predicts the florigen expression profiles in rice with high accuracy. Furthermore, we demonstrated the potential for application of DEAS in different crops. Incorporating DEAS into the breeding programs of conventional and underutilized crops could help meet the future needs for crop adaptation and promote sustainable agriculture.

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