Fine-Tuning Florigen Increases Field Yield Through Improving Photosynthesis in Soybean

文献类型： 外文期刊

第一作者： Xu, Kun

作者： Xu, Kun;Zhang, Xiao-Mei;Zhu, Jinlong;Cheng, Zhiyuan;Huang, Penghui;Fu, Yong-Fu;Xu, Kun;Zhu, Jinlong;Chen, Haifeng;Zhang, Chanjuan;Zhou, Xinan;Miao, Yuchen;Feng, Xianzhong

作者机构：

关键词： high yield; florigen; FT; photosynthesis; soybean; vegetative growth

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.754； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2021 年 12 卷

页码：

收录情况： SCI

摘要： 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.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序