RT22J502 Aromatic Rice Cultivar for Faster Trait-Stable Breeding
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Solution Overview
Problem
The development of a new rice cultivar is a time-consuming and unpredictable process, requiring significant resources and effort due to the unpredictability of genetic combinations and environmental factors, making it difficult to identify genetically superior plants with desired traits such as herbicide resistance, insect resistance, and improved grain quality.
Innovation Solution
The development of the long grain aromatic rice cultivar RT22J502, which includes methods for introducing specific traits like herbicide resistance, insect resistance, and modified metabolism through genetic transformation and gene editing, along with the production of hybrid seeds and blends, ensuring genetic stability and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional breeding methods are used to develop new rice cultivars, then genetic diversity and adaptability are improved, but the process becomes time-consuming and unpredictable
Solution Approach 1:
The patent applies preliminary action by pre-screening and selecting parent lines with desired traits (herbicide resistance, insect resistance, grain quality) before crossing. This advance preparation of parental material with known characteristics reduces the time required for subsequent selection and evaluation in the breeding program.
Solution Approach 2:
The patent implements feedback through systematic evaluation and comparison of breeding lines against established standards and target traits. By continuously assessing performance data from field trials and using this information to guide further breeding decisions, the program accelerates the identification of superior cultivars while maintaining genetic diversity.
2Adaptability or versatility
If conventional breeding procedures are used, then natural genetic combinations are explored, but resource expenditure and unpredictability increase
Solution Approach 1:
The patent reduces resource expenditure by pre-characterizing parent lines for specific traits of interest (herbicide resistance, insect resistance, grain quality). This preliminary characterization allows breeders to make informed crossing decisions and focus resources on the most promising combinations rather than evaluating all possible crosses.
Solution Approach 2:
The patent applies local quality by focusing breeding efforts on specific regions of the genome that control important traits. By using marker-assisted selection and targeted crossing strategies, resources are concentrated on improving particular characteristics rather than attempting to optimize all traits simultaneously across the entire genome.
3Measurement precision
If extensive field testing and evaluation are conducted to identify superior plants, then selection accuracy is improved, but time and resource requirements increase
Solution Approach 1:
The patent improves breeding efficiency by conducting preliminary evaluations of parent lines for key traits before initiating crossing programs. This advance assessment allows selection of parents with proven performance, reducing the number of generations required for selection and accelerating the overall breeding process while maintaining accuracy.
Solution Approach 2:
The patent applies segmentation by dividing the breeding program into distinct phases with specific evaluation objectives. By separating trait evaluation into modular assessment steps (herbicide resistance, insect resistance, grain quality), the program can efficiently track progress and make targeted decisions at each stage rather than conducting comprehensive testing throughout the entire process.
Data Source
AI summary
Plants, seeds and tissue cultures of the long grain aromatic rice cultivar RT22J502, and methods for producing a rice plant by crossing a rice plant of rice cultivar RT22J502 with itself or with another rice plant, such as a plant of another rice variety or rice hybrid, are disclosed.