Maize Inbred Line 1PWYJ10 for Stable Multi-Trait Breeding
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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, 1PWYJ10, with introgressed 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 variety development processes are used to combine desirable traits, then stable and agronomically sound maize varieties are produced, but the process takes six to twelve years which is time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-establishing a diverse panel of inbred lines with known genetic characteristics and desirable traits before the actual variety development begins. This pre-prepared genetic resource panel allows breeders to quickly select and combine traits without starting from scratch, significantly reducing the 6-12 year development timeline while maintaining variety stability through systematic genetic selection.
2Adaptability or versatility
If multiple desirable traits are combined in a single maize variety, then agronomic performance is improved, but the breeding process complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the complex breeding process into distinct phases: (1) development and characterization of individual inbred lines with specific traits, (2) systematic crossing and hybridization of selected inbreds, and (3) evaluation and selection of F1 hybrids. This segmented approach allows each trait to be developed and optimized independently before combination, reducing overall process complexity while achieving multi-trait agronomic performance.
Solution Approach 2:
The patent creates universal inbred lines that serve multiple functions - each inbred line is developed to possess specific desirable traits (disease resistance, drought tolerance, yield components) that can be universally combined with other inbreds. These multi-functional inbred parents enable the same genetic resources to be used across multiple hybrid combinations, simplifying the breeding process while achieving complex multi-trait outcomes.
3Stability of the object's composition
If traditional breeding methods are used to develop new maize varieties, then genetic diversity is maintained, but productivity and speed of variety release are reduced
Solution Approach 1:
The patent applies copying by creating and maintaining a standardized panel of inbred lines that can be repeatedly used as parental stocks. These inbred lines serve as reusable genetic templates that can be crossed with different partners to produce multiple hybrid varieties. This copying approach allows rapid variety release because the same proven inbred parents can be continuously used to generate new hybrids without needing to develop entirely new genetic material each time, thereby increasing productivity while preserving genetic diversity through systematic selection.
Data Source
AI summary
A novel maize variety designated 1PWYJ10 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PWYJ10 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PWYJ10 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 1PWYJ10 or a locus conversion of 1PWYJ10 with another maize variety.