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建立基于Fraxinus mandshurica的生长点转换方法的CRISPR/Cas9基因编辑系统

Lei Li^1,2, Yucheng Wang^1,2, Fan Yang^1,2

¹College of Forestry, Shenyang Agricultural University, Shenyang, 110866, China.

BMC plant biology

|August 26, 2025

概括

研究人员开发了一种有效的CRISPR/Cas9基因编辑系统, 这种系统可以进行精确的基因修饰以增强树木特征和分子繁殖.

科学领域:

植物生物技术
森林遗传学
分子生物学

背景情况:

由于缺乏有效的基因编辑技术,因此无法改善满洲 (Fraxinus mandshurica) 的特征.
基因工程在这种物种中提供了特征增强的潜力.

研究的目的:

建立一个有效的CRISPR/Cas9基因编辑系统.
开发一种用于生成基因编辑植物的组织培养系统.
研究FmbHLH1在干旱耐受性中的作用.

主要方法:

在CRISPR/ Cas9传递中优化Agrobacterium tumefaciens度和感染持续时间.
开发了具有不同激素度的聚类芽组织培养系统.
产生和选FmbHLH1编辑的仿真植物和同胞植物Fraxinus mandshurica.
通过分析编辑和野生类型线的生理指标来评估干旱耐受性.

主要成果:

成功建立了Fraxinus mandshurica的有效CRISPR/Cas9基因编辑系统.
一个组织培养系统促进了基因编辑同胞植物的诱导和选.
基因编辑系统表现出有效性,18%的诱导聚类芽显示编辑.
与野生类型相比,FmbHLH1淘汰线具有较低的干旱耐受性,这表明其具有积极的调节作用.

结论:

开发的CRISPR/Cas9系统为Fraxinus mandshurica的分子繁殖提供了一个可行的工具.
FmbHLH1在调节满洲灰的干旱耐受性方面发挥着至关重要的作用.
这项研究为Fraxinus mandshurica的遗传改进奠定了基础.

关键词:

类植物 BHLH转录因子 CRISPR/Cas9基因编辑系统干旱压力增长点

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