Natural variation in Ghd7 is an important regulator of heading date and yield potential in rice
Natural variation in Ghd7 is an important regulator of heading date and yield potential in rice
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DOI：
10.1038/ng.143
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发表时间：
2008-06-01
期刊：
影响因子：
30.8
通讯作者：
Zhang, Qifa
中科院分区：
文献类型：
--
作者：
Xue, Weiya;Xing, Yongzhong;Zhang, Qifa
产量潜力、株高和抽穗期是决定许多作物生产力的三类性状。在这里，我们表明，数量性状基因座（QTL）Ghd7，分离出一个优秀的杂交水稻和编码CCT结构域蛋白，具有重大影响的一系列性状在水稻，包括每穗粒数，株高和抽穗期。Ghd7在长日照条件下的增强表达延迟抽穗并增加株高和穗大小。功能降低的自然突变体使水稻能够在温带和凉爽地区种植。因此，Ghd7在提高全球水稻产量和适应性方面发挥了关键作用。
Yield potential, plant height and heading date are three classes of traits that determine the productivity of many crop plants. Here we show that the quantitative trait locus (QTL) Ghd7, isolated from an elite rice hybrid and encoding a CCT domain protein, has major effects on an array of traits in rice, including number of grains per panicle, plant height and heading date. Enhanced expression of Ghd7 under long-day conditions delays heading and increases plant height and panicle size. Natural mutants with reduced function enable rice to be cultivated in temperate and cooler regions. Thus, Ghd7 has played crucial roles for increasing productivity and adaptability of rice globally.