Hybrid Maize Breeding for Trait Diversity and Field Stability
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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
The development of a novel maize hybrid variety X05T062, 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 the number of traits incorporated increases, but the uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent divides the complex breeding process into distinct segments: developing separate inbred lines with specific traits, then combining them through controlled hybridization. This segmentation allows each parent line to maintain genetic stability while the hybrid combines multiple desirable traits uniformly across the population
Solution Approach 2:
The patent performs preliminary actions by developing and stabilizing inbred parent lines before hybridization. The parent lines are subjected to multiple generations of selfing and selection to ensure genetic uniformity and trait stability, which then ensures uniform expression of traits in the resulting hybrid population
2Adaptability or versatility
If multiple inbred varieties are crossed to combine desirable traits, then trait diversity increases, but the complexity of the breeding process increases
Solution Approach 1:
The breeding program is segmented into distinct phases: parent line development, hybridization, and hybrid stabilization. Each phase has specific objectives and procedures, making the overall complex process manageable through systematic division of steps
Solution Approach 2:
Parent lines are prepared in advance with desired traits established through multiple generations of selection. This preliminary preparation reduces the complexity during the actual hybridization phase, as the crossing involves predetermined, well-characterized parent lines rather than simultaneous multi-parent crosses
Data Source
AI summary
A novel maize variety designated X05T062 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 X05T062 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X05T062 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X05T062, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X05T062 are provided. Methods for producing maize varieties derived from maize variety X05T062 and methods of using maize variety X05T062 are disclosed.