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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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CRISPR and crRNAs02:53

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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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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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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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在农业应用中使用CRISPR/基于案例的诊断.

Tanzena Tanny1,2, Mohamed Sallam1,2, Narshone Soda2

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概括

聚类正规间隔的短平行列重复 (CRISPR) /CRISPR相关蛋白 (Cas) 系统为农业害虫和疾病提供快速而精确的诊断. 这些先进的工具对现场层面的疾病检测和作物管理有很大的前景.

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这就是CRISPR-Cas.转基因转基因转基因转基因转基因转基因转基因快速通道繁殖的繁殖方式核酸检测核酸检测检测病原体的诊断 病原体的诊断植物保护 植物保护在护理点进行检测.传统的策略与传统的策略不同.

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科学领域:

  • 农业科学 农业科学
  • 分子生物学分子生物学
  • 生物技术是生物技术.

背景情况:

  • 农业生产受到害虫和病原体的严重阻碍.
  • 早期和高效的诊断方法对于有效的作物疾病管理至关重要.
  • 克里斯普尔/卡斯系统已经成为核酸检测的强大工具.

研究的目的:

  • 审查基于CRISPR/Cas的农业诊断工具的最新进展.
  • 探索CRISPR/Cas系统在诊断植物病原体和识别转基因作物的应用.
  • 讨论CRISPR/Cas诊断在农业中的挑战,解决方案和未来前景.

主要方法:

  • 关于CRISPR/Cas系统在农业诊断中的当前文献的综述.
  • 分析CRISPR/Cas系统组件 (Cas内核酶,导向RNA) 用于目标核酸的识别和分裂.
  • 将CRISPR/Cas诊断与RT-PCR,LAMP和NGS等传统方法进行比较.

主要成果:

  • 在农业诊断中,CRISPR/Cas系统表现出高灵敏度,特异性和快速测试时间.
  • 这些系统有效地识别植物病原体和检测转基因作物.
  • 克里斯普尔/卡斯诊断技术在多重复合能力和适合于医院实地测试方面具有优势.

结论:

  • 基于CRISPR/Cas的诊断方法在农业中比传统方法有了显著的进步.
  • 这项技术具有改善作物健康监测和管理的巨大潜力.
  • 应对当前的挑战将进一步释放CRISPR/Cas系统在各种农业应用中的全部潜力.