Vibrant Pinto Bean Seed Coat Darkening Resistance
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Solution Overview
Problem
Pinto beans tend to darken during storage, which is perceived as a product flaw by consumers, leading to underutilization in the diet despite their nutritional benefits.
Innovation Solution
Development of the Vibrant edible bean line, which carries a recessive sd gene conferring resistance to seed coat darkening, maintaining a bright white color even under adverse conditions and during storage, along with breeding methods and tissue culture techniques to propagate and utilize this variety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If pinto beans are stored for consumption, then they remain available for use, but the seed coat darkens which is perceived as a product flaw
Solution Approach 1:
The patent applies parameter changes by introducing a genetic parameter (the recessive sd gene) that fundamentally alters the biochemical pathway responsible for seed coat darkening. This genetic modification changes the inherent stability parameter of the bean seed coat, allowing it to maintain its original color state throughout storage periods, thereby resolving the contradiction between extended storage duration and prevention of darkening.
2Reliability
If consumers avoid darkening beans, then product quality is maintained, but legumes remain underutilized in the United States diet
Solution Approach 1:
The patent converts the previously harmful darkening effect into a beneficial trait by selecting for the recessive sd gene variant that prevents darkening. This transforms what was once a quality degradation issue into a desirable product characteristic, thereby increasing consumer acceptance and utilization of legumes in the diet while maintaining consistent product quality throughout storage.
3Ease of operation
If breeders select for slow darkening traits, then consumer acceptance improves, but breeding complexity increases
Solution Approach 1:
The patent applies the extraction principle by isolating and focusing on a single key genetic factor (the recessive sd gene) that controls the darkening trait. By extracting this specific genetic element from the complex polygenic inheritance of bean color, the breeding program is simplified to track and select for a single gene pair, thereby improving consumer acceptance through consistent quality while reducing breeding program complexity.
Data Source
AI summary
An edible bean seed designated as <11258> or Vibrant, a sample of the edible bean deposited under accession no. PI 673082 is disclosed. Methods of using the edible bean seed designated as <11258> or Vibrant for breeding new varieties of bean seed are also disclosed, as well as seeds of the edible bean seed designated as <11258> or Vibrant.