Importance of the Interaction between Heading Date Genes Hd1 and Ghd7 for Controlling Yield Traits in Rice
Importance of the Interaction between Heading Date Genes Hd1 and Ghd7 for Controlling Yield Traits in Rice
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抽穗期基因 Hd1 和 Ghd7 之间的相互作用对于控制水稻产量性状的重要性
DOI：
10.3390/ijms20030516
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发表时间：
2019-01
影响因子：
5.6
通讯作者：
Jie-Yun Zhuang
中科院分区：
文献类型：
--
作者：
Zhen-Hua Zhang;Yu-Jun Zhu;Shi-Lin Wang;Ye-Yang Fan;Jie-Yun Zhuang
适宜的开花期是粮食生产成功的关键，它不仅依赖于单个抽穗期基因的作用，而且还依赖于基因间的互作。本研究以籼稻品种广汕97与MY46杂交获得的近等基因系为材料，分析了Hd1与Ghd7互作对开花期和产量性状的影响。在非功能性ghd 7797背景下，功能性Hd 17997等位基因在自然短日照（NSD）条件和自然长日照（NLD）条件下均促进开花。在Ghd7MY46的功能背景下，Hd11997在NSD条件下仍然促进开花，但在NLD条件下抑制开花。对于Ghd7，功能性Ghd7MY46等位基因在两种条件下抑制开花，这在NLD条件下的功能性Hd11997背景中得到增强。延迟开花，两种处理的小穗数和粒重均增加，但小穗育性和穗数波动较大。携带非功能性hd1MY46和功能性Ghd7MY46等位基因的水稻品系在两种条件下都具有最高的籽粒产量。这些结果表明，更长的生长期，更大的利用可用的温度和光并不总是导致更高的粮食产量。为了最大限度地提高水稻产量，需要仔细选择最佳的抽穗期基因组合。
Appropriate flowering time is crucial for successful grain production, which relies on not only the action of individual heading date genes, but also the gene-by-gene interactions. In this study, influences of interaction between Hd1 and Ghd7 on flowering time and yield traits were analyzed using near isogenic lines derived from a cross between indica rice cultivars ZS97 and MY46. In the non-functional ghd7ZS97 background, the functional Hd1ZS97 allele promoted flowering under both the natural short-day (NSD) conditions and natural long-day (NLD) conditions. In the functional Ghd7MY46 background, Hd1ZS97 remained to promote flowering under NSD conditions, but repressed flowering under NLD conditions. For Ghd7, the functional Ghd7MY46 allele repressed flowering under both conditions, which was enhanced in the functional Hd1ZS97 background under NLD conditions. With delayed flowering, spikelet number and grain weight increased under both conditions, but spikelet fertility and panicle number fluctuated. Rice lines carrying non-functional hd1MY46 and functional Ghd7MY46 alleles had the highest grain yield under both conditions. These results indicate that longer growth duration for a larger use of available temperature and light does not always result in higher grain production. An optimum heading date gene combination needs to be carefully selected for maximizing grain yield in rice.
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DOI：
--
发表时间：
2012
期刊：
Acta Agronomica Sinica
影响因子：
--
作者：
W. Xiang
通讯作者：
W. Xiang
影响因子：
4.6
作者：
Zhu YJ;Fan YY;Wang K;Huang DR;Liu WZ;Ying JZ;Zhuang JY
通讯作者：
Zhuang JY
将 qTGW1.1 区域分解为两个紧密连锁的小 QTL，对水稻粒重具有稳定的影响
影响因子：
2.9
作者：
Zhang HW;Fan YY;Zhu YJ;Chen JY;Yu SB;Zhuang JY
通讯作者：
Zhuang JY
DOI：
10.1186/s12284-018-0236-z
发表时间：
2018-08-02
期刊：
Rice (New York, N.Y.)
影响因子：
--
作者：
Dong Q;Zhang ZH;Wang LL;Zhu YJ;Fan YY;Mou TM;Ma LY;Zhuang JY
通讯作者：
Zhuang JY
影响因子：
5.4
作者：
Chen, X;Temnykh, S;McCouch, SR
通讯作者：
McCouch, SR