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相关概念视频

CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
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Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

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Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
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CRISPR and crRNAs02:53

CRISPR and crRNAs

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Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
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What is Genetic Engineering?00:49

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Overview
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Homologous Recombination02:31

Homologous Recombination

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The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
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The Antiviral System of Bacteria and Archaea: CRISPR01:23

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CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats is a adaptive immune system found in bacteria and archaea that protects against viral infections. This system enables prokaryotic cells to identify, remember, and neutralize foreign genetic elements, primarily bacteriophages, by storing fragments of the invader’s DNA as a genetic memory.The CRISPR immune response begins during an initial infection. Cas (CRISPR-associated) proteins play a central role in this...
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相关实验视频

Updated: Jul 16, 2025

Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits
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克里斯普尔/卡斯技术彻底改变了作物育种.

Qiaoling Tang1,2, Xujing Wang2, Xi Jin3

  • 1National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572024, China.

Plants (Basel, Switzerland)
|September 9, 2023
PubMed
概括

克里斯普尔/卡斯基因编辑通过实现精确的基因修改来提高产量,质量和抗压能力,从而彻底改变了作物育种. 这项技术加速了新作物品种的发展,改变了可持续农业.

关键词:
这是CRISPR/Cas技术.繁殖技术的繁殖技术农作物 农作物 农作物胚胎细胞质的胚胎细胞质.

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科学领域:

  • 农业科学 农业科学
  • 遗传学 是一个遗传学.
  • 生物技术是生物技术.

背景情况:

  • 可持续的粮食需求需要在作物育种方面取得进展.
  • 克里斯普尔/卡斯技术提供了快速而精确的基因编辑,用于新型生殖质生成.
  • 这种技术对于农业创新和开发新的育种技术至关重要.

研究的目的:

  • 审查用于作物改良的CRISPR/Cas技术的最新进展.
  • 突出CRISPR/Cas在基因功能分析和新生殖质开发中的应用.
  • 讨论CRISPR/Cas在作物育种中的挑战和未来发展.

主要方法:

  • 对近期关于CRISPR/Cas在农业中的应用研究的文献综述.
  • 分析CRISPR/Cas对产量,质量和抗压能力的影响.
  • 检查特定的应用,如新化和杂交育种.

主要成果:

  • 克里斯普尔/卡斯促进了基因功能分析和改进作物品种的创造.
  • 应用包括 de novo 化,解基因性,以及增强杂交种子生产.
  • 观察到杂交大米的无性繁殖和双倍单 haploid 繁殖的突破.

结论:

  • 克里斯普尔/卡斯技术正在改变作物育种,从而带来了重要的农业创新.
  • 持续发展为全球粮食安全带来了作物改良的新时代.
  • 解决CRISPR/Cas应用中的挑战对于其在作物中的未来成功至关重要.