Hybrid Maize Trait Introgression With Stable Plant 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
The development of the hybrid maize variety X10T085, produced by crossing specific inbred varieties and incorporating genetic loci for traits like male sterility, disease resistance, and altered metabolism 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 and trait combination are improved, but uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent segments the breeding process into distinct stages: developing pure inbred lines with specific traits, then crossing them to create hybrids. This segmentation allows each parent line to maintain genetic purity and uniformity while the hybrid combines diverse traits from both parents, resolving the contradiction between trait combination and uniformity.
Solution Approach 2:
The patent extracts and isolates specific desirable traits into separate inbred lines before combining them. By taking out individual traits (disease resistance, drought tolerance, etc.) and stabilizing them in pure lines first, then combining these stabilized lines, the patent achieves both trait diversity and uniformity in the final hybrid.
2Productivity
If multiple traits are combined in a single hybrid, then agronomic quality and yield are improved, but plant characteristic uniformity deteriorates
Solution Approach 1:
The patent merges multiple pure inbred lines, each carrying specific desirable traits, into a single hybrid combination. This merging occurs at the controlled cross-pollination stage where uniform F1 hybrid progeny are produced, combining the productivity benefits of multiple traits while maintaining uniformity through the hybrid vigor effect.
Solution Approach 2:
The patent creates a universal hybrid platform that can incorporate multiple functional traits (disease resistance, insect resistance, drought tolerance, yield improvement) into a single variety. The hybrid system serves multiple functions simultaneously while maintaining consistent plant characteristics across the population.
3Stability of the object's composition
If inbred lines are used as parents to ensure uniformity, then plant characteristic stability is improved, but genetic diversity deteriorates
Solution Approach 1:
The patent applies local quality by making each parent inbred line genetically uniform (homozygous) for specific local traits or gene combinations, while the hybrid combination itself provides the overall genetic diversity. Each parent line has specialized local genetic quality, but the hybrid combines these locally optimized lines to achieve both stability and diversity.
Data Source
AI summary
A novel maize variety designated X10T085 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 X10T085 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X10T085 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X10T085, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X10T085 are provided. Methods for producing maize varieties derived from maize variety X10T085 and methods of using maize variety X10T085 are disclosed.