Hybrid Maize X10T091 for Stable Multi-Trait Inheritance
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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 X10T091 is developed by crossing inbred varieties and introducing genetic loci for traits like male sterility, disease resistance, and herbicide tolerance through backcrossing and transformation, with cytoplasmically-inherited traits ensuring trait inheritance 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 complexity of the breeding process increases, but the uniformity and stability of plant characteristics deteriorate
Solution Approach 1:
The patent segments the breeding process by using separate inbred parent lines (e.g., inbred A and inbred B) that each possess specific desirable traits. By crossing these segmented parental lines, the hybrid inherits a combination of traits while maintaining uniformity through the controlled segregation of parental characteristics.
Solution Approach 2:
The patent applies local quality by introducing specific genetic loci into particular parental lines to confer specific traits (e.g., disease resistance in one parent, yield traits in another). This allows each parent to contribute specialized local genetic improvements while the hybrid maintains overall uniformity.
2Adaptability or versatility
If multiple genetic loci are introduced through backcrossing and transformation, then the number of desirable traits increases, but the device complexity of the genetic system increases
Solution Approach 1:
The patent merges multiple genetic loci into a unified hybrid system by combining inbred lines that have been separately developed with specific traits. The hybrid consolidates these distributed genetic improvements into a single uniform genotype, reducing the complexity of managing multiple separate breeding programs.
Solution Approach 2:
The patent creates a universal hybrid variety that can serve multiple functions (disease resistance, yield improvement, stress tolerance) through a single genetic combination. This multi-functional hybrid reduces the need for separate specialized varieties and simplifies the overall genetic system management.
3Reliability
If cytoplasmically-inherited traits are used to ensure trait inheritance, then the reliability of trait transmission improves, but the difficulty of detecting and measuring genetic composition increases
Solution Approach 1:
The patent uses cytoplasmic factors (mitochondrial or chloroplast DNA) as intermediaries to transmit certain traits through the maternal line. This cytoplasmic inheritance system acts as a reliable mediator for specific traits while the nuclear genome handles other characteristics, allowing breeders to track and select for cytoplasmic traits through phenotypic observation rather than complex molecular analysis.
Data Source
AI summary
A novel maize variety designated X10T091 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 X10T091 with another maize plant are disclosed. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into X10T091 through backcrossing or genetic transformation, and to the maize seed, plant and plant part produced thereby are described. Maize variety X10T091, the seed, the plant produced from the seed, and variants, mutants, and minor modifications of maize variety X10T091 are provided. Methods for producing maize varieties derived from maize variety X10T091 and methods of using maize variety X10T091 are disclosed.