Maize Inbred 1PHBS20 for Faster Stable Variety Development
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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 introduction of the novel maize variety 1PHBS20, which can be bred through backcross conversion, genetic manipulation, and transformation, incorporating traits like male sterility, herbicide tolerance, and disease resistance, and can be propagated through controlled pollination techniques to ensure genetic purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding methods are used to develop new maize varieties, then desirable traits can be combined in a single variety, but the process is time-consuming and takes six to twelve years from the first cross to finished seed delivery
Solution Approach 1:
The patent applies preliminary action by using doubled haploid technology to create inbred lines in a single generation rather than requiring multiple generations of selfing. This preliminary creation of homozygous lines accelerates the breeding process while maintaining the stability and reliability of the final variety, reducing development time from six to twelve years to a significantly shorter duration.
Solution Approach 2:
The patent changes the temporal parameter of the breeding process by utilizing molecular markers and genomic selection to evaluate and select lines at earlier stages. This parameter change allows for accelerated selection and evaluation, reducing the time required to develop stable, high-yielding varieties while maintaining breeders' ability to combine desirable traits.
2Adaptability or versatility
If multiple desirable traits are combined in a single variety through traditional breeding, then agronomical soundness and yield stability are improved, but the complexity of the breeding process increases
Solution Approach 1:
The patent introduces molecular markers as intermediaries to track and select for desirable traits during the breeding process. These markers simplify the complexity by providing objective, measurable indicators of trait presence, allowing breeders to efficiently combine multiple traits (disease resistance, drought tolerance, yield) without navigating complex phenotypic evaluations and multiple generation cycles.
Solution Approach 2:
The patent replaces traditional mechanical and phenotypic evaluation methods with molecular and genomic analysis tools. This substitution reduces the operational complexity of combining multiple traits by using DNA-based selection criteria rather than relying on extensive field testing and visual evaluation across multiple generations, thereby maintaining agronomical soundness while simplifying the breeding process.
3Stability of the object's composition
If inbred lines are created through multiple generations of selfing, then genetic homogeneity is achieved, but the time required for line development increases significantly
Solution Approach 1:
The patent applies preliminary action by creating inbred lines through doubled haploid technology in a single generation. This preliminary creation of homozygous lines eliminates the need for multiple generations of selfing while achieving the same genetic homogeneity, thereby dramatically reducing line development time without compromising the stability and uniformity required for successful variety development.
Data Source
AI summary
A novel maize variety designated 1PHBS20 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PHBS20 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PHBS20 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 1PHBS20 or a locus conversion of 1PHBS20 with another maize variety.