1PGAB10 Maize Inbred Line for Stable Hybrid Trait Combination
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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 the novel maize variety 1PGAB10, which incorporates traits like male sterility, disease resistance, and drought tolerance through backcross conversion, genetic manipulation, and transformation, along with the introduction of heritable traits and cytoplasmically-inherited traits, to enhance genetic diversity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize variety development processes are used to combine desirable traits, then the resulting varieties have improved disease resistance, drought tolerance, and yield, but the development process takes six to twelve years which is excessively time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-establishing inbred lines with specific desirable traits (such as disease resistance and drought tolerance) before the actual variety development process. The inbred lines 1PGAB10 and other parental lines are developed in advance with predetermined characteristics, allowing the hybridization process to focus on combining these pre-selected traits rather than developing them from scratch during the variety creation process.
Solution Approach 2:
The patent segments the variety development process into independent inbred line development stages and hybridization stages. Each inbred line (1PGAB10, 1PAB11, 1PAB12, etc.) is developed separately with specific trait combinations, then these segmented developmental paths are integrated through controlled crossbreeding to create final hybrid varieties that combine multiple desirable traits simultaneously.
2Productivity
If multiple desirable traits are combined in a single maize variety through traditional breeding, then the variety achieves high yield and agronomic soundness, but the process requires numerous steps over six to twelve years which reduces productivity
Solution Approach 1:
The patent implements preliminary action by developing and stabilizing inbred lines with specific yield-related traits and agronomic characteristics before hybridization. The inbred lines are pre-screened and selected for desirable productivity traits, so that when hybrids are created, they inherit these pre-validated high-yield characteristics without requiring additional time for trait development during the hybridization process.
Solution Approach 2:
The patent applies parameter changes by systematically varying and selecting for specific agronomic parameters (maturity rate, plant height, ear position, etc.) during inbred line development. The inbred lines are characterized by specific parameter combinations that optimize hybrid performance, allowing rapid selection of parental lines that will produce high-yielding hybrids with desired agronomic parameters.
3Stability of the object's composition
If traditional maize breeding processes are used to develop new varieties, then stable and agronomically sound varieties are produced, but the complex multi-step process over six to twelve years reduces ease of manufacture
Solution Approach 1:
The patent segments the complex breeding process into standardized, repeatable inbred line development modules and hybridization modules. Each inbred line is developed through a consistent multi-generation selfing process that ensures genetic stability, and these standardized modules can be replicated and combined systematically to create multiple hybrid varieties, simplifying the overall manufacturing process while maintaining variety stability.
Solution Approach 2:
The patent creates universal inbred lines that can serve multiple functions as parental lines for different hybrid combinations. The inbred lines are developed with broad-spectrum desirable traits that make them versatile parents for creating various hybrid varieties with different specific trait combinations, reducing the need to develop separate breeding programs for each variety and simplifying the overall manufacturing process.
Data Source
AI summary
A novel maize variety designated 1PGAB10 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PGAB10 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PGAB10 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 1PGAB10 or a locus conversion of 1PGAB10 with another maize variety.