1PCPU74 Maize Inbred With Backcross-Converted Traits for Hybrid Seed
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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, 1PCPU74, with introduced traits like male sterility, disease resistance, and drought tolerance through backcross conversion, genetic manipulation, and transformation, along with processes for producing hybrid seeds and plants with specific genetic complements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding methods are used to combine desirable traits, then stable and agronomically sound maize varieties are developed, but the process takes six to twelve years which is time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, drought tolerance, yield potential) before hybridization. The inbred lines are developed and tested in advance, so when combined into hybrids, the desirable traits are already established, reducing the overall development time while maintaining variety stability
Solution Approach 2:
The patent segments the maize breeding process into distinct components: developing separate inbred lines with specific traits, then combining them through hybridization. This segmentation allows parallel development of multiple trait-specific lines, which can then be combined in various hybrid configurations, significantly reducing the time required to develop stable varieties with multiple desirable traits
2Productivity
If multiple desirable traits are combined in a single variety, then yield and resistance are improved, but the breeding process becomes more complex
Solution Approach 1:
The patent creates universal inbred lines that serve multiple functions: they can be used as parents in different hybrid combinations, provide multiple desirable traits simultaneously (disease resistance, drought tolerance, yield), and maintain stability across environments. This multi-functionality reduces breeding complexity by using the same inbred lines in various hybrid configurations rather than developing separate lines for each trait combination
Solution Approach 2:
The patent merges multiple desirable traits from different inbred lines into single hybrid varieties. By combining inbred lines that each possess specific traits (e.g., one line with disease resistance, another with drought tolerance), the resulting hybrid inherits and expresses multiple traits simultaneously, achieving high productivity without proportionally increasing breeding process complexity
Data Source
AI summary
A novel maize variety designated 1PCPU74 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PCPU74 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PCPU74 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 1PCPU74 or a locus conversion of 1PCPU74 with another maize variety.