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对Miscanthus的全面分析NF-YA基因揭示了潜在的干旱应激适应参与

Yang Yu^1,2,3, Mengting Li^3,4, Ming Yu²

¹Tianjin Crop Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300192, China.

Plants (Basel, Switzerland)

|October 16, 2025

概括

一个新型基因,MsNF-YA4,通过调节与压力相关的基因,增强了植物的干旱耐受性. 在阿拉比多普西斯中,MsNF-YA4的过度表达改善了水含量和抗氧化活性,为抗旱作物开发提供了潜力.

科学领域:

植物生物学植物生物学
分子遗传学分子遗传学
压力生理学压力生理学

背景情况:

米斯坎图斯表现出显著的非生物应激耐受性.
干旱压力会对植物生长和产量产生负面影响.
核因子Y (NF-Y) 转录因子对于其他物种的干旱反应至关重要.

研究的目的:

研究NF-Y转录因子在Miscanthus干旱耐受性中的作用.
为了确定特定的NF-Y基因参与Miscanthus应激反应.
探索MsNF-YA4在提高作物抗旱能力方面的潜力.

主要方法:

基因组范围的分析和基因表达造型的 Miscanthus 在脱水/奥斯莫斯压力下.
在Arabidopsis.中过度表达MsNF-YA4.
测量了转基因Arabidopsis中的生理参数 (RWC,叶绿素,) 和抗氧化酶活性.
通过MsNF-YA4复合体对Miscanthus促进体 (P5CS1,SOD,CAT1) 的过渡性交换活化试验.

主要成果:

在Miscanthus中,MsNF-YA4在脱水/透应激下被识别并显著上调.
在Arabidopsis中过度表达MsNF-YA4增强了干旱耐受性.
转基因的阿拉比多普西斯菌株表现出相对增加的水分含量,叶绿素含量,林含量和抗氧化酶活性.
MsNF-YA4,与MsNF-YB3/MsNF-YC2一起,增强了P5CS1,SOD和CAT1促进体的交换激活.

结论:

MsNF-YA4在赋予Miscanthus的干旱耐受性方面发挥着关键作用.
MsNF-YA4通过调节压力和抗氧化剂相关基因而起作用.
MsNF-YA4代表了开发耐旱作物的有希望的遗传资源.

关键词:

这就是Miscanthus.在 MsNF-YA4 中,干旱造成的压力是干旱.转基因植物是转基因植物.

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