Hybrid Maize X11T095 Breeding for Stable Multi-Trait Performance
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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, which are crucial for commercial crop production.
Innovation Solution
A novel maize hybrid variety, X11T095, is developed through careful breeding and selection, incorporating genetic loci for traits like male sterility, disease resistance, and altered metabolism, and can be produced using crossing, backcrossing, and transformation techniques, ensuring 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 trait diversity increases, but uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent segments the breeding process into distinct stages: developing inbred lines with specific traits, then crossing them to produce hybrids. This segmentation allows each parent line to be highly uniform and stable, while the hybrid combines diverse traits from both parents, resolving the contradiction between trait diversity and uniformity.
Solution Approach 2:
The patent applies local quality by creating inbred lines that are genetically uniform (high quality in terms of stability) but possess different specific traits. When crossed, these lines contribute their respective uniform traits to the hybrid, which exhibits both diversity of traits and uniformity of expression, satisfying both requirements simultaneously.
2Adaptability or versatility
If traditional plant breeding is used to develop new varieties, then trait combination flexibility improves, but breeding time and complexity increase
Solution Approach 1:
The patent employs preliminary action by developing and maintaining inbred lines with predetermined traits before the actual hybridization event. These inbred lines are pre-selected and pre-characterized for specific desirable traits, so when crossed, they immediately produce hybrids with the desired trait combinations, significantly reducing the time required compared to traditional breeding where traits are combined and selected over multiple generations.
Solution Approach 2:
The patent extracts specific desirable traits into separate inbred lines, allowing each line to be optimized for particular characteristics (e.g., disease resistance, yield, maturity). This extraction enables flexible recombination of traits through controlled crosses, achieving trait combination flexibility without the time-consuming process of developing each new variety from scratch through traditional breeding.
3Productivity
If inbred lines are crossed to produce hybrids, then hybrid vigor and yield improve, but maintenance of parental line uniformity becomes more difficult
Solution Approach 1:
The patent uses copying by maintaining multiple copies of each inbred parental line through careful propagation and storage. This ensures that the genetic uniformity of each parental line is preserved across different breeding seasons and locations. The inbred lines serve as stable genetic templates that can be repeatedly crossed to produce consistent hybrid varieties, maintaining both parental uniformity and hybrid vigor over time.
Data Source
AI summary
A novel maize variety designated X11T095 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 X11T095 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X11T095 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X11T095, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X11T095 are provided. Methods for producing maize varieties derived from maize variety X11T095 and methods of using maize variety X11T095 are disclosed.