Transferring herbicide susceptibility to weedy rice
This research aims to transfer herbicide susceptibility to weedy rice by silencing the HPPD-resistant gene using RNAi or cross-pollination with susceptible rice cultivars, potentially mitigating weedy rice impact on agriculture.
Overview
The project focuses on transferring herbicide susceptibility to weedy rice through genetic modification techniques. The goal is to silence the Hydroxiphenyl Pyruvate Dioxigenase (HPPD)-resistant gene, prevalent in certain rice cultivars, to mitigate the agricultural challenges posed by weedy rice. By using RNA interference (RNAi) systems or developing susceptible rice cultivars for cross-pollination, this research intends to produce a new weedy rice phenotype susceptible to herbicides.
Technical specifications
Key features:
- Identification of HPPD-resistant and susceptible genes across rice germplasm
- Use of RNAi technology to silence resistant genes in weedy rice
- Development of susceptible rice cultivars for cross-pollination
- Greenhouse experiments to identify promising candidate rice lines
- Molecular analysis to sequence and characterize the HIS1 gene
These steps are critical in achieving the desired phenotype that is more manageable in agricultural settings.
Technology readiness level
The research is currently at Technology Readiness Level 3, involving active research and proof of concept. Future validation includes further molecular analysis and a conventional plant breeding program, with an anticipated implementation period of 7 years for commercial viability.
About University of Arkansas, Fayetteville
The University of Arkansas in Fayetteville is a comprehensive public research university and the flagship of the state system, pairing broad academic breadth with an applied, partnership‑oriented research culture. Industry engages through a research and technology park that co‑locates labs, startups, and corporate tenants, with shared instrumentation and prototyping resources. Experiential pipelines—co‑ops and internships across engineering and business—connect companies with talent year‑round, and proximity to multiple Fortune 500 headquarters supports rapid piloting and scale‑up. Research is supported by competitive federal funding from agencies such as NSF, NIH, DOE, USDA, and DoD, and a dedicated technology transfer office streamlines IP, licensing, startups, and corporate‑sponsored research.
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