Gene-edited cover crop lines with reduced plasticity to shade and heat for improved intercropping establishment
Gene-edited mutants of a biofuel cover crop with reduced architectural responses to low light, foliar shade, and temperature stress enable stronger seedling establishment when interseeded into standing corn or soy. Validated in controlled environments with maintained yield, the trait may also reduce lodging and improve pod tolerance at harvest.
Overview
This solution offers gene-edited lines of a biofuel cover crop engineered to show reduced plasticity to shade and heat. By limiting excessive architectural responses to low light, foliar shade, and temperature stress, the edited plants establish more reliably as seedlings when interseeded into standing row crops such as corn or soy. The approach has been validated in controlled growth chambers and greenhouses, where edited lines maintained yield while showing significantly reduced shade- and temperature-induced architecture changes. Additional harvest benefits may include reduced lodging and greater tolerance of higher seed pod positions due to shorter stature. The trait is anticipated to be broadly applicable to other crops beyond the initial cover crop species.
Technical specifications
- Trait focus: Reduced plant plasticity to light quality, foliar shade, and temperature stress
- Method: Targeted gene editing of a biofuel cover crop species to dampen shade- and heat-induced architecture responses
- Validated outcomes: Significantly reduced architecture responses to low light, foliar shade, and temperature stress in controlled environments, with no observed loss in yield
- Potential agronomic benefits: Improved seedling survival and stand establishment under intercropping; reduced lodging at harvest; improved tolerance to higher seed pods through shorter stature
- Anticipated broader applicability: Trait strategy expected to transfer to additional crop species
Technology readiness level
The technology has been validated in controlled growth chambers and greenhouses, demonstrating reduced shade- and temperature-induced architecture responses without yield loss. Next-stage validation will compare gene-edited mutant lines with wild type for seedling establishment when interseeded into standing soy and corn crops, with measurements of seedling survival, stand establishment, and oil seed yield at the end of the growth cycle.
About Danforth Plant Science Center
The Donald Danforth Plant Science Center is a leading independent, nonprofit research institute in St. Louis with a multidisciplinary research community focused on plant science. Corporate engagement is built into the campus through co‑located labs, flexible leased space, and shared core facilities that enable side‑by‑side collaboration with startups and established R&D teams. Its location within a regional agtech innovation district places partners near major corporate hubs, venture networks, and field‑to‑lab testing resources. Research is supported by competitive federal funding from agencies such as the NSF, USDA, and DOE, alongside industry‑sponsored projects and philanthropy. A dedicated technology transfer office provides IP management, licensing, and venture formation support.
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