COLD1 Confers Chilling Tolerance in Rice

文献类型： 外文期刊

第一作者： Ma, Yun

作者： Ma, Yun;Dai, Xiaoyan;Xu, Yunyuan;Luo, Wei;Lin, Xiaoli;Liu, Huanhuan;Zhang, Dajian;Xiao, Jun;Guo, Xiaoyu;Xu, Shujuan;Niu, Yuda;Jin, Jingbo;Zhang, Hui;Chong, Kang;Zheng, Xiaoming;Ge, Song;Zeng, Dali;Qian, Qian;Pan, Yajun;Li, Legong;Xu, Xun;Wang, Wen;Chong, Kang

作者机构：

期刊名称：CELL （ 影响因子：41.582； 五年影响因子：46.898 ）

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收录情况： SCI

摘要： Rice is sensitive to cold and can be grown only in certain climate zones. Human selection of japonica rice has extended its growth zone to regions with lower temperature, while the molecular basis of this adaptation remains unknown. Here, we identify the quantitative trait locus COLD1 that confers chilling tolerance in japonica rice. Overexpression of COLD1(jap) significantly enhances chilling tolerance, whereas rice lines with deficiency or downregulation of COLD1(jap) are sensitive to cold. COLD1 encodes a regulator of G-protein signaling that localizes on plasma membrane and endoplasmic reticulum (ER). It interacts with the G-protein alpha subunit to activate the Ca2+ channel for sensing low temperature and to accelerate G-protein GTPase activity. We further identify that a SNP in COLD1, SNP2, originated from Chinese Oryza rufipogon, is responsible for the ability of COLDjap/ind to confer chilling tolerance, supporting the importance of COLD1 in plant adaptation.

分类号： Q2

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