Maize Inbred PH47Y3 Breeding via Segmentation and Preliminary Action
Find Innovative SolutionsGenerate Solutions
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
The introduction of the novel maize variety PH47Y3, which involves crossing with other maize plants to introduce traits like male sterility, disease resistance, and improved agronomic characteristics through backcross conversion, genetic manipulation, and transformation, along with the use of cytoplasmic or nuclear factors to confer specific traits, enables the creation of stable, high-yielding maize plants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional breeding methods are used to develop new maize varieties, then genetic stability and agronomic soundness are maintained, but the development process is time-consuming (6-12 years)
Solution Approach 1:
The patent applies preliminary action by using pre-existing inbred lines and germplasm collections that have already been developed and characterized. Breeders can directly utilize these pre-prepared materials for hybrid development, eliminating the need to create inbred lines from scratch (which takes 6-12 years), thereby reducing the overall breeding cycle time while maintaining genetic stability through the use of registered and evaluated germplasm.
2Productivity
If multiple desirable traits (disease resistance, drought tolerance, high yield) are combined in a single variety, then agronomic performance is improved, but the complexity of achieving stable combination increases
Solution Approach 1:
The patent applies segmentation by dividing the complex breeding objective into separate functional components, each embodied in different inbred lines or germplasm resources. For example, one inbred line may be specialized for disease resistance, another for drought tolerance, and another for high yield potential. These segmented components are then combined through controlled crosses to create hybrids that exhibit all desired traits, reducing the complexity of trying to stack all traits in a single line.
Solution Approach 2:
The patent applies universality by developing inbred lines and germplasm collections that possess multiple desirable traits simultaneously (multi-functional germplasm). These universal lines can serve multiple purposes: providing disease resistance, drought tolerance, and high yield potential all at once, thereby simplifying the breeding process by reducing the number of separate lines that need to be combined to achieve the desired phenotype.
3Stability of the object's composition
If inbred seed is used to ensure homogeneous population, then genetic uniformity is achieved, but the process of producing and maintaining inbred lines is time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-establishing and registering inbred lines and germplasm collections that have already achieved genetic uniformity through extensive inbreeding. These pre-prepared inbreds can be directly utilized for hybrid production without requiring the breeder to spend 6-12 years creating them from scratch, thereby maintaining genetic uniformity while significantly reducing the time required for the actual breeding program.
4Productivity
If new varieties are developed through extensive breeding programs, then agronomic characteristics are improved, but the time from first cross to finished seed delivery is extended
Solution Approach 1:
The patent applies segmentation by separating the development of inbred lines from the development of hybrids. Inbred lines are developed and registered in advance (segment 1), then stored in germplasm collections. When a new hybrid is needed, the breeder simply crosses pre-existing inbreds (segment 2), which takes much less time than developing everything from scratch. This segmentation of the breeding process significantly reduces the overall development cycle time while maintaining high agronomic performance.
Data Source
AI summary
A novel maize variety designated PH47Y3 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH47Y3 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH47Y3 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 PH47Y3 or a locus conversion of PH47Y3 with another maize variety.