生物
粳稻
细胞生物学
内质网
水稻
野生稻
基因座(遗传学)
适应(眼睛)
耐寒性
下调和上调
蛋白质亚单位
遗传学
基因
植物
神经科学
作者
Yun Ma,Xianjun Dai,Yunyuan Xu,Wei Luo,Xiaoming Zheng,Dali Zeng,Ya‐Jun Pan,Xiangui Lin,Huanhuan Liu,Dajian Zhang,Jun Xiao,Xiaoyu Guo,Shujuan Xu,Yaoling Niu,Jingbo Jin,Hui Zhang,Xun Xu,Legong Li,Wen Wang,Qian Qian,Song Ge,Kang Chong
出处
期刊:Cell
[Elsevier]
日期:2015-03-01
卷期号:160 (6): 1209-1221
被引量:651
标识
DOI:10.1016/j.cell.2015.01.046
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 α subunit to activate the Ca(2+) 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 COLD(jap/ind) to confer chilling tolerance, supporting the importance of COLD1 in plant adaptation.
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