在木中多重编辑Nucleoredoxin1的Tandem Array:从小的内置到转移和复杂的倒置
Yen-Ho Chen1, Shakuntala Sharma2, William P Bewg1,2,3
1Department of Plant Biology, University of Georgia, Athens, Georgia, USA; College of Forestry, Nanjing Forestry University, Nanjing, China.
The CRISPR journal
|June 12, 2023
概括
在杂交树中,CRISPR-Cas9有效地使七个关联的核素1基因变异. 这产生了多样化的突变,包括大量的删除和重新排列,有助于协同复制基因的功能研究.
科学领域:
- 植物基因组学 植物基因组学
- 基因编辑技术的技术
- 分子生物学分子生物学
背景情况:
- CRISPR-Cas9被广泛用于各种物种的精确突变发生.
- 编辑具有高度序列相似性的密切相关基因仍然具有挑战性.
- 双重复制的基因需要先进的多重编辑策略.
研究的目的:
- 为了研究CRISPR-Cas9的有效性,多重编辑一个合基因阵列.
- 鉴定杂交青中核素1 (NRX1) 的七基因串联阵列中的突变特征.
- 探索由CRISPR-Cas9诱导的复杂基因组重组,并联复制基因.
主要方法:
- 使用CRISPR-Cas9多重编辑,使用单个指导RNA准NRX1合阵列.
- 在 *Populus tremula* × *Populus alba* *中生成了42个转基因线条.
- 目标捕获测序用于对突变和修复结果的全面分析.
主要成果:
- 实现了七个NRX1*基因的高效多重编辑.
- 观察到的突变包括小的内置,局部删除,大型基因组脱落和复杂的重排 (转位,反转).
- 目标捕获测序成功重建了不寻常的突变基因和多种结构变异.
结论:
- 克里斯普尔-Cas9是一种强大的工具,用于多重编辑并排复制的基因.
- 这种方法产生了多样化的突变,具有结构和副本数量的变化.
- 产生的突变将促进未来的NRX1基因的功能性特征.
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