Precision CRISPR gene editing toolkit for transgene-free vegetable improvement

Overview

This offering provides access to a specialized research capability for precision gene editing in vegetable crops. The team combines deep expertise in tissue culture and CRISPR technology to deliver transgene-free gene edits, including targeted knockouts and chromosomal inversions. By optimizing CRISPR components and tissue culture protocols tailored to specific vegetable species, the group enables partners to achieve heritable genetic improvements without retaining foreign DNA in the final product. This approach addresses a key market and regulatory demand for clean gene-edited crops.

Technical specifications

Core capabilities:

• Systematic optimization of CRISPR machinery using endogenous promoters and codon-bias refinement
• In vivo screening via Agroinfiltration in tomato and in vitro validation through CRISPR-Chip technology
• Dual-guide CRISPR system designed for creating targeted chromosomal inversions
• Robust tissue culture protocols for callus initiation and plant regeneration across challenging horticultural species
• Vector systems incorporating reporter genes to enable seamless segregation of editing machinery
• Alternative delivery methods including spray-on particles, meristem transformation, and protoplast systems
• Speed breeding infrastructure to accelerate generation turnover and rapid evaluation of edited lines

Track record:

• Tripled editing efficiency in sorghum, with protocols successfully translated to other cereals
• Commercialized tissue culture systems across multiple horticultural species

Technology readiness level

The underlying gene editing and tissue culture methodologies have been validated in cereals and horticultural species, with editing efficiency improvements demonstrated in sorghum. The current phase focuses on adapting and validating these toolkits specifically for the target vegetable crop, including optimization of CRISPR component expression, guide RNA design, and tissue culture media. Once the toolkits are established in the candidate vegetable, the team will deploy them to create heritable gene knockouts and inversions, followed by rapid segregation of the CRISPR machinery in the next generation using speed breeding. The capability is positioned for pilot-scale validation and collaborative refinement with industry partners.