Maize Hybrid Breeding With Trait Introgression and Stable Uniformity
Find Innovative SolutionsGenerate Solutions
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 commercial crops.
Innovation Solution
The development of a novel maize hybrid variety X11T092, produced by crossing specific inbred varieties and incorporating genetic loci for traits like male sterility, disease resistance, and herbicide tolerance through backcrossing and transformation, along with cytoplasmic inheritance of traits like CMS, to enhance genetic diversity 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 genetic diversity is improved, but uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent segments the breeding process into distinct phases: first developing homozygous inbred lines through repeated selfing to ensure uniformity, then crossing these standardized lines to introduce genetic diversity. This segmentation allows each phase to optimize for its specific goal without compromising the other.
Solution Approach 2:
The patent performs preliminary actions by developing and stabilizing inbred parent lines before hybridization. The inbred lines are subjected to multiple generations of selfing and selection to achieve homozygosity and uniformity in advance, ensuring that when crossed, they produce consistent hybrid offspring with desired traits.
2Adaptability or versatility
If multiple desirable traits are combined in a single hybrid, then adaptability and yield are improved, but the complexity of the breeding process increases
Solution Approach 1:
The patent merges multiple desirable traits into single inbred parent lines through systematic breeding and selection. By consolidating traits like disease resistance, drought tolerance, and uniform maturity into standardized parent lines, the subsequent hybridization process becomes more straightforward while still achieving multi-trait expression in the offspring.
Solution Approach 2:
The patent creates inbred lines that serve multiple functions: they are uniform enough for standardized seed production, contain multiple desirable traits for adaptability, and can be used repeatedly as parent lines. This multi-functionality reduces the need for separate breeding programs for different traits.
3Manufacturing precision
If inbred lines are used as parents to ensure uniformity, then plant characteristics are standardized, but genetic diversity is reduced
Solution Approach 1:
The patent employs asymmetric breeding strategies where male and female parent lines are developed with different trait combinations optimized for their specific roles. The female parent may be optimized for seed production and uniformity, while the male parent contributes specific desirable traits. This asymmetry allows each line to be highly uniform for its purpose while the hybrid combines diverse traits from both parents.
Data Source
AI summary
A novel maize variety designated X11T092 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 X11T092 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X11T092 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X11T092, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X11T092 are provided. Methods for producing maize varieties derived from maize variety X11T092 and methods of using maize variety X11T092 are disclosed.