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| 1 | CRISPR/Cas9基因编辑在三维基因组研究中的应用显示文摘CRISPR/Cas9系统在基因编辑方面具有巨大优势,能够低成本、可编程、方便快捷地用于动物、植物以及微生物的基因组靶向编辑和功能改造。三维基因组学是近年来兴起的一门研究染色质高级结构动态调控及基因组生物学功能的交叉学科。在三维基因组研究中,通常采用对DNA片段进行基因编辑以模拟基因组结构性变异,标记特定DNA片段,进而研究调控元件对于基因调控、细胞分化、组织发生、器官形成、个体发育的影响,最终阐明三维基因组的组装调控机制和生物学功能。因此,CRISPR及其衍生技术为研究三维基因组提供了极好的遗传学工具。本文主要综述了CRISPR片段编辑及其衍生技术在三维基因组调控与功能研究中的应用,以期为后续研究工作提供理论参考以及新的研究思路。 | 刘沛峰 吴强 | 2020 | 遗传2020，42，1： | 8 |
| 2 | Toward precise CRISPR DNA fragment editing and predictable 3D genome engineering显示文摘Ever since gene targeting or specific modification of genome sequences in mice was achieved in the early 1980s,the reverse genetic approach of precise editing of any genomic locus has greatly accelerated biomedical research and biotechnology development.In particular,the recent development of the CRISPR/Cas9 system has greatly expedited genetic dissection of 3D genomes.CRISPR gene-editing outcomes result from targeted genome cleavage by ectopic bacterial Cas9 nuclease followed by presumed random ligations via the host double-strand break repair machineries.Recent studies revealed,however,that the CRISPR genomeediting system is precise and predictable because of cohesive Cas9 cleavage of targeting DNA.Here,we synthesize the current understanding of CRISPR DNA fragment-editing mechanisms and recent progress in predictable outcomes from precise genetic engineering of 3D genomes.Specifically,we first briefly describe historical genetic studies leading to CRISPR and 3D genome engineering.We then summarize different types of chromosomal rearrangements by DNA fragment editing.Finally,we review significant progress from precise ID gene editing toward predictable 3D genome engineering and synthetic biology.The exciting and rapid advances in this emerging field provide new opportunities and challenges to understand or digest 3D genomes. | Qiang Wu Jia Shou | 2020 | Journal of Molecular Cell Biology2020，12，11： | 1 |
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