Maize Inbred 1PJQU24 for Stable Trait Introgression and Yield
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Solution Overview
Problem
The development of new maize varieties is a time-consuming process that requires years to combine desirable traits such as disease resistance, drought tolerance, and high yield, posing challenges in efficiently producing stable and agronomically sound maize varieties.
Innovation Solution
The development of a novel maize variety, 1PJQU24, with introduced traits through backcross conversion, genetic manipulation, and transformation, including cytoplasmic male sterility and heritable traits like herbicide tolerance and disease resistance, facilitated by crossing and tissue culture techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding methods are used to combine desirable traits, then the resulting varieties have stable and agronomically sound characteristics, but the development process takes six to twelve years
Solution Approach 1:
The patent applies preliminary action by pre-establishing inbred lines with specific desirable traits (disease resistance, drought tolerance, yield potential) before combining them. The inbred lines are developed and characterized in advance, allowing for more efficient hybrid development and reducing the overall breeding cycle time while maintaining variety stability.
2Productivity
If multiple desirable traits are combined in a single variety, then the variety achieves maximal yield and agronomic soundness, but the breeding process becomes more complex and time-consuming
Solution Approach 1:
The patent applies segmentation by dividing the breeding process into separate inbred line development stages, each focused on specific traits (disease resistance, drought tolerance, yield). This modular approach allows parallel development of multiple trait-specific lines, which are then combined through controlled crosses to create high-yielding varieties with comprehensive agronomic soundness, reducing overall process complexity.
3Stability of the object's composition
If traditional crossing methods are used to develop new varieties, then the traits are stably inherited, but the process requires numerous generations and extensive field testing
Solution Approach 1:
The patent applies preliminary action by pre-developing homozygous inbred lines with stable, desired traits through several generations of selfing before the crossing stage. This preliminary homozygization ensures that the parental lines have stable genetic composition, so their hybrids inherit traits predictably in the first generation, reducing the number of subsequent generations needed for stabilization.
Data Source
AI summary
A maize variety designated 1PJQU24 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PJQU24 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PJQU24 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety 1PJQU24 or a locus conversion of 1PJQU24 with another maize variety.