Maize Hybrid X13C727 Trait Segmentation and Stability
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield while maintaining uniformity and stability in hybrid maize varieties.
Innovation Solution
Development of the hybrid maize variety X13C727 through crossing proprietary Pioneer Hi-Bred International inbred varieties, incorporating locus conversion and transformation to introduce specific traits, and using methods like backcrossing and transformation to enhance genetic integrity and agronomic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding techniques are used to combine desirable traits, then disease resistance and drought tolerance can be improved, but maintaining uniformity and stability of the hybrid variety becomes difficult
Solution Approach 1:
The patent segments the breeding process into distinct stages: developing pure inbred lines with specific traits, then crossing them to produce uniform hybrids. This segmentation allows disease resistance and drought tolerance to be incorporated in the inbred parent lines while maintaining hybrid uniformity through controlled crossing.
Solution Approach 2:
The patent applies preliminary action by developing and stabilizing inbred parent lines with desired traits (disease resistance, drought tolerance) before producing the hybrid. This preliminary development ensures that the parent lines have stable genetic compositions, which then translates to uniform hybrid progeny when crossed.
2Productivity
If multiple desirable traits are combined in a single hybrid, then yield and stress resistance improve, but the complexity of the breeding process increases
Solution Approach 1:
The patent merges multiple desirable traits (disease resistance, drought tolerance, high yield) into the inbred parent lines before hybridization. By combining these traits in the parents through systematic breeding, the resulting hybrid inherits all traits simultaneously, achieving high productivity without proportionally increasing breeding complexity.
Solution Approach 2:
The patent creates inbred parent lines that serve multiple functions: they provide disease resistance, drought tolerance, and yield potential simultaneously. These multi-functional parent lines then produce hybrids that express all desired traits, reducing the need for separate breeding programs for each trait.
3Reliability
If locus conversion and transformation methods are used to introduce specific traits, then genetic integrity and agronomic performance are enhanced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent uses locus conversion as an intermediary method to introduce specific traits. Instead of direct transformation into the hybrid, traits are first introduced into inbred parent lines through controlled locus conversion, allowing for verification and stabilization before hybrid production. This intermediary step enhances genetic integrity while managing precision requirements.
Data Source
AI summary
A novel maize variety designated X13C727 and seed, plants and plant parts thereof, produced by crossing Pioneer Hi-Bred International, Inc. proprietary inbred maize varieties. Methods for producing a maize plant that comprises crossing hybrid maize variety X13C727 with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X13C727 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. This invention relates to the maize variety X13C727, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X13C727. This invention further relates to methods for producing maize varieties derived from maize variety X13C727.