Hybrid Maize X13V114 Breeding for Multi-Trait Uniformity
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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 X13V114 is developed through careful breeding and selection, incorporating genetic loci for traits like male sterility, disease resistance, and herbicide tolerance, achieved via backcrossing and transformation, with cytoplasmic inheritance of traits like CMS, and regenerable tissue cultures to ensure uniformity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine multiple desirable traits, then the number of traits incorporated increases, but the uniformity and stability of plant characteristics deteriorates
Solution Approach 1:
The patent divides the complex breeding process into distinct stages: developing inbred lines with specific traits, creating F1 hybrids through controlled crossing, and maintaining uniformity through standardized propagation methods. This segmentation allows multiple traits to be systematically incorporated while preserving plant uniformity at each stage.
Solution Approach 2:
The patent performs preliminary actions by developing and stabilizing inbred lines before hybridization. The inbred lines are thoroughly characterized and purified through multiple generations of selfing to ensure genetic uniformity, which prevents variability from propagating to the F1 hybrid generation.
2Adaptability or versatility
If multiple genetic loci are introduced through backcrossing and transformation, then trait diversity increases, but the complexity of the breeding process increases
Solution Approach 1:
The breeding process is segmented into modular steps: selecting donor inbreds with specific traits, performing controlled crosses, screening progeny for desired characteristics, and repeating the process across generations. This modular approach makes complex multi-trait breeding manageable and systematic.
Solution Approach 2:
The patent employs feedback mechanisms through rigorous phenotypic and genotypic screening at each breeding stage. Plants are evaluated for presence of desired traits, and only those meeting criteria proceed to the next generation, allowing real-time adjustment and selection to guide the breeding process toward desired outcomes.
3Stability of the object's composition
If inbred lines are developed through multiple generations of selfing, then genetic uniformity improves, but the time required for variety development increases
Solution Approach 1:
The patent performs preliminary development of inbred lines with high genetic uniformity before the hybridization stage. By investing time upfront to purify and stabilize parent lines through multiple generations of selfing, the subsequent F1 hybrid production becomes more efficient and requires fewer generations to achieve uniformity.
Solution Approach 2:
The patent monitors and adjusts key parameters during inbred line development, including generation number, population size, and selection intensity. By optimizing these parameters, the breeding program achieves sufficient genetic uniformity in fewer generations than traditional approaches.
Data Source
AI summary
A maize variety designated X13V114 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 X13V114 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X13V114 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X13V114, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X13V114 are provided. Methods for producing maize varieties derived from maize variety X13V114 and methods of using maize variety X13V114 are disclosed.