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Related Concept Videos

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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Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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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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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.
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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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Updated: Sep 8, 2025

Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits
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Dissecting Plant Gene Functions Using CRISPR Toolsets for Crop Improvement.

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CRISPR gene editing tools like base editors (BEs) and CRISPR interference (CRISPRi) offer powerful methods for agricultural breeding. These advanced CRISPR toolsets enhance plant gene function studies and molecular breeding strategies.

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Area of Science:

  • Plant Science
  • Genetics
  • Biotechnology

Background:

  • CRISPR gene editing technology is rapidly advancing agricultural breeding.
  • Numerous CRISPR toolsets, including base editors (BEs), CRISPR interference (CRISPRi), CRISPR activation (CRISPRa), and plant epigenetic editors (PEEs), have emerged.
  • These tools are crucial for understanding gene function and regulation in plants.

Purpose of the Study:

  • To comprehensively summarize the application and capacity of various CRISPR toolsets in plant gene expression regulation.
  • To highlight the potential of these tools in analyzing plant gene regulatory networks.
  • To discuss challenges in CRISPR application and propose solutions for high-throughput gene function analysis.

Main Methods:

  • Review and synthesis of existing literature on CRISPR toolsets in plant science.
  • Analysis of the capabilities of base editors, CRISPRi, CRISPRa, and PEEs for gene regulation studies.
  • Discussion of problem-solving strategies for CRISPR applications in high-throughput analysis.

Main Results:

  • CRISPR toolsets provide diverse mechanisms for precise genome manipulation in plants.
  • These tools facilitate detailed studies of gene function and epigenetic regulation.
  • The reviewed toolsets offer significant potential for crop genetic improvement and molecular breeding.

Conclusions:

  • CRISPR technology offers powerful and versatile solutions for plant gene editing and functional genomics.
  • Advanced CRISPR toolsets are instrumental in dissecting complex gene regulatory networks.
  • These innovations pave the way for accelerated crop improvement and sustainable agriculture.