Related Experiment Video
Updated: Jul 12, 2026

09:43
Breeding by Design for Functional Rice with Genome Editing Technologies
Published on: January 3, 2025
AI-designed OpenCRISPR-1 enables efficient targeted mutagenesis and prime editing in rice
Ajay Gupta1, Rabia Ahuja1, Bo Liu1
1Division of Plant Science and Technology, Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.
Abiotech
|July 11, 2026
Summary
Generative AI enabled OpenCRISPR-1, an open-source genome editing tool. This system was optimized for rice, demonstrating high mutation efficiency and enabling bacterial blight resistance through precise gene editing.
Area of Science:
- Plant biotechnology
- Genome editing
- Artificial intelligence in biology
Background:
- Generative artificial intelligence (AI) advances have enabled de novo design of genome-editing nucleases.
- OpenCRISPR-1 provides an open-source alternative to existing CRISPR systems, enhancing "freedom to operate" (FTO).
Purpose of the Study:
- To develop and validate a monocot-optimized OpenCRISPR-1 genome-editing ecosystem in rice (Oryza sativa).
- To assess the efficacy of OpenCRISPR-1 for multiplexed editing and its potential for conferring disease resistance.
- To integrate an AI-designed sgRNA scaffold and engineer a prime editing system for advanced plant genome engineering.
Main Methods:
- Targeted the OsSWEET susceptibility gene family in rice calli and T0 plants.
- Performed deep sequencing to analyze the mutational landscape of OpenCRISPR-1.
- Integrated an AI-designed Open sgRNA scaffold (OpsgRNA) and engineered an OpenCRISPR-1-based prime editing system (OpenPE6c).
Main Results:
- OpenCRISPR-1 achieved robust multiplexed editing in rice with mutation frequencies up to 100%.
- The mutational landscape of OpenCRISPR-1 mirrored SpCas9, enabling predictable loss-of-function alleles for bacterial blight resistance.
- OpsgRNA maintained high editing efficacy, and OpenPE6c demonstrated precise prime editing with reduced byproducts in rice protoplasts.
Conclusions:
- OpenCRISPR-1 is a versatile, high-performance, public-access platform for advanced plant genome engineering.
- This AI-driven system facilitates precision crop breeding and offers a transparent framework for global accessibility.
- The developed ecosystem enhances genome editing capabilities in monocots, paving the way for improved crop traits.
Related Concept Videos
CRISPR/Cas9 Genome Editing
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...
CRISPR
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 Short...
CRISPR and crRNAs
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...
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...
Conservative Site-specific Recombination and Phase Variation
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
Homologous Recombination
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...

