Maize Inbred PH2SYN Breeding for Disease Resistance and Yield
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Solution Overview
Problem
The development of new maize varieties and hybrids is a time-consuming process, taking six to twelve years, and existing technologies face challenges in combining desirable traits such as disease resistance, drought tolerance, and high yield in a stable and agronomically sound manner.
Innovation Solution
A novel maize variety, PH2SYN, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and improved agronomic characteristics, using genetic manipulation and transformation to introduce desired traits, and a process for producing hybrid maize seeds by crossing PH2SYN with another maize variety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding methods are used to combine desirable traits, then disease resistance and yield improvement can be achieved, but the development process takes six to twelve years which is too time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-selecting and characterizing inbred lines with specific desirable traits (disease resistance, yield potential, stress tolerance) before hybridization. The inbred PH2SYN and other parent lines are developed and evaluated in advance with known trait profiles, allowing breeders to make informed crossing decisions without lengthy field testing of each new combination. This pre-characterization of parental lines significantly reduces the time required for variety development while maintaining reliable disease resistance traits.
2Productivity
If multiple desirable traits are combined in a single variety, then agronomic performance and yield are improved, but the complexity of the breeding program and trait integration increases
Solution Approach 1:
The patent applies segmentation by dividing the complex breeding program into distinct modular components: separate inbred lines are developed for specific traits (disease resistance, yield, stress tolerance), each line is independently characterized and stabilized, and then these modular inbred lines are combined through controlled hybridization. This segmentation allows each trait to be optimized independently in its parent line before integration, reducing the overall complexity of the breeding program while achieving high-yielding, multi-trait varieties.
3Stability of the object's composition
If stable and uniform maize varieties are developed, then agronomic soundness and yield consistency are improved, but the time required for stabilization through repeated breeding cycles increases
Solution Approach 1:
The patent applies copying by using inbred lines as stable genetic templates that can be repeatedly copied and propagated. Once an inbred line like PH2SYN is developed and stabilized with desired traits, it serves as a reusable parental source that can be crossed with other inbred lines to produce multiple hybrid varieties. This copying approach allows the stable genetic composition of the inbred parent to be replicated across numerous hybrid combinations without requiring repeated stabilization cycles for each new variety, significantly reducing time while maintaining variety stability.
Data Source
AI summary
A novel maize variety designated PH2SYN and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2SYN with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into «Product» 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 PH2SYN or a locus conversion of PH2SYN with another maize variety.