Hybrid Maize Crossing for Multi-Trait Stability in X10T087
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Solution Overview
Problem
Existing hybrid maize development methods struggle to combine desirable traits such as disease resistance, heat and drought tolerance, and improved yield while maintaining uniformity and stability in plant characteristics, which are crucial for commercial crop production.
Innovation Solution
A novel maize hybrid variety X10T087 is developed by crossing two inbred varieties, incorporating genetic loci for traits like male sterility, disease resistance, and herbicide tolerance through backcrossing and transformation, and utilizing cytoplasmic inheritance to enhance trait expression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine multiple desirable traits, then trait diversity increases, but uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent segments the breeding process into distinct phases: first developing uniform inbred parent lines through repeated selfing, then combining them in controlled hybrid crosses. This segmentation allows each parent line to maintain genetic uniformity while the hybrid combines diverse traits from different parents, resolving the contradiction between trait diversity and uniformity.
Solution Approach 2:
The patent applies preliminary action by developing and stabilizing inbred parent lines before creating the hybrid. Through repeated selfing and selection, the parent lines are pre-conditioned to be genetically uniform, ensuring that when crossed, the hybrid will exhibit both trait diversity (from combining different parents) and uniformity (from the uniformity of each parent line).
2Adaptability or versatility
If multiple traits are combined in a single hybrid, then agronomic quality improves, but complexity of the breeding process increases
Solution Approach 1:
The breeding process is segmented into separate stages: developing inbred line A with certain traits, developing inbred line B with different traits, then crossing them to produce the hybrid with combined traits. This segmentation makes the complex multi-trait breeding manageable by breaking it into simpler, sequential steps rather than attempting to combine all traits simultaneously.
Solution Approach 2:
The patent merges the desirable traits from two separate inbred parent lines into a single hybrid offspring. By combining uniform inbred lines that each possess specific desirable traits, the hybrid inherits and expresses multiple beneficial traits simultaneously, improving agronomic quality while using a systematic approach to manage breeding complexity.
Data Source
AI summary
A novel maize variety designated X10T087 and seed, plants and plant parts thereof are produced by crossing inbred maize varieties. Methods for producing a maize plant by crossing hybrid maize variety X10T087 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X10T087 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X10T087, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X10T087 are provided. Methods for producing maize varieties derived from maize variety X10T087 and methods of using maize variety X10T087 are disclosed.