Improving Soybean Protein Quality Through Genetic and Environmental Characterization
Evaluate genetic variation and environmental effects on amino acid composition in soybean breeding lines to identify stable, high-protein genotypes that meet the nutritional demands of feed and food markets.
Why This Research Is Important
- Soybeans are the leading global plant-based protein source, accounting for over 60% of global oilseed production and providing all eight essential amino acids.
- Amino acid balance is critical for monogastric animal feed (poultry, swine, aquaculture), but methionine and cysteine are often 2–3% lower than optimal, reducing feed efficiency.
- Breeding historically focused on yield and oil, often at the expense of protein quality, leaving a gap in optimized amino acid profiles.
- Environmental factors—such as temperature, soil nitrogen, and water availability—strongly influence amino acid composition, but the mechanisms are not well understood.
- Consistent, high-quality amino acid profiles are key to:
- Reducing the need for synthetic amino acid supplements
- Improving the global competitiveness of U.S. soybean meal
- Capturing premium pricing opportunities in feed and human food markets
- This research fills a critical gap by linking genetics, environment, and protein quality to breed soybeans that deliver stable, high-value amino acid profiles.
How This Research Benefits the Farmer
- Improves feed efficiency by enhancing the natural amino acid balance, reducing the need for costly supplements.
- Opens new premium markets for human food and high-quality feed, especially in the growing plant-based protein sector.
- Identifies varieties that consistently perform well across environments, giving farmers:
- More stable yields and protein quality
- Better marketability for both domestic and export markets
- Opportunities for premium pricing in specialty feed and food-grade markets
- Supports profitability and sustainability by:
- Increasing the baseline value of soybean meal
- Strengthening global competitiveness of U.S. soy
- Providing data-driven tools for variety selection and management decisions
- Positions farmers for future demand growth as global buyers and food companies seek high-protein, high-quality soy.
Research Team
- Dr. Eliana Monteverde, Assistant Professor, University of Illinois
Trial Locations
- Urbana, IL
- Orr Research Facility, Perry, IL
About the Lead Researchers

Dr. Eliana Monteverde
Assistant Professor
University of Illinois Urbana-Champaign
217-300-7658
elianam@illinois.edu
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