Fine-Tuning Florigen Increases Field Yield Through Improving Photosynthesis in Soybean.
Fine-Tuning Florigen Increases Field Yield Through Improving Photosynthesis in Soybean.
复制标题
微调成花素通过改善大豆光合作用提高田间产量
DOI：
10.3389/fpls.2021.710754
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发表时间：
2021
影响因子：
5.6
通讯作者：
Fu YF
中科院分区：
文献类型：
--
作者：
Xu K;Zhang XM;Chen H;Zhang C;Zhu J;Cheng Z;Huang P;Zhou X;Miao Y;Feng X;Fu YF
由于全球人口增长的需求，作物产量一直保持着对研究人员的吸引力。开花激活剂(如成花素)的突变会增加植物的生物量，但代价是晚开花，这会阻止作物在田间成熟。因此，开花激活剂在农业生产中的应用难度很大。在这里，我们开发了一种利用成花素显著提高大豆田间产量的策略。通过对大豆RNAi沉默成花基因同源物(Glyine-max-Flowering Locus T like，GmFTL)转基因品系的筛选，我们鉴定出一株GmFTL-RNAi#1，GmFTL的表达和开花时间变化不大，但显著提高了大豆产量。不出所料，GmFTL-RNAi#1在田间正常成熟，在多个地点和年份表现出显著的丰产性，这表明通过微调开花激活剂的表达可以在开花时间和高产之间达到平衡。进一步的研究揭示了GmFTL负调控光合作用的未知机制，光合作用是作物产量的重要来源，展示了成花素的一种新功能。因此，由于成花素在植物中的高度保守功能和经典的RNAi方法，这些发现为利用早花基因来提高作物产量提供了一个有前途的策略。
Crop yield has been maintaining its attraction for researchers because of the demand of global population growth. Mutation of flowering activators, such as florigen, increases plant biomass at the expense of later flowering, which prevents crop maturity in the field. As a result, it is difficult to apply flowering activators in agriculture production. Here, we developed a strategy to utilize florigen to significantly improve soybean yield in the field. Through the screening of transgenic lines of RNAi-silenced florigen homologs in soybean (Glycine-max-Flowering Locus T Like, GmFTL), we identified a line, GmFTL-RNAi#1, with minor changes in both GmFTL expression and flowering time but with notable increase in soybean yield. As expected, GmFTL-RNAi#1 matured normally in the field and exhibited markedly high yield over multiple locations and years, indicating that it is possible to reach a trade-off between flowering time and high yield through the fine-tuning expression of flowering activators. Further studies uncovered an unknown mechanism by which GmFTL negatively regulates photosynthesis, a substantial source of crop yield, demonstrating a novel function of florigen. Thus, because of the highly conserved functions of florigen in plants and the classical RNAi approach, the findings provide a promising strategy to harness early flowering genes to improve crop yield.
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影响因子：
6.9
作者：
Köhler IH;Ruiz-Vera UM;VanLoocke A;Thomey ML;Clemente T;Long SP;Ort DR;Bernacchi CJ
通讯作者：
Bernacchi CJ
影响因子：
5.6
作者：
Liu L;Farrona S;Klemme S;Turck FK
通讯作者：
Turck FK
影响因子：
4.3
作者：
NANDA, KK;HAMNER, KC
通讯作者：
HAMNER, KC
影响因子：
64.8
作者：
Huang, Xuehui;Yang, Shihua;Han, Bin
通讯作者：
Han, Bin
DOI：
10.12703/p6-40
发表时间：
2014
期刊：
F1000prime reports
影响因子：
--
作者：
Jensen PE;Leister D
通讯作者：
Leister D