Maize Inbred PH47R1 Breeding Acceleration
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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 from the first cross to the delivery of finished seed, and existing technologies face challenges in creating stable, high-yielding varieties with desirable traits such as disease resistance, drought tolerance, and improved agronomic characteristics.
Innovation Solution
A novel maize variety, PH47R1, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and drought tolerance, achieved through backcross conversion, genetic manipulation, and transformation, allowing for the creation of hybrid seeds with enhanced yield and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding processes are used to develop new varieties with desirable traits, then the varieties achieve stability and high yielding characteristics, but the development time takes six to twelve years from first cross to finished seed delivery
Solution Approach 1:
The patent applies preliminary action by pre-establishing a diverse panel of inbred lines with known genetic characteristics and desirable traits before the actual breeding program begins. This preparatory work includes characterizing each inbred line for disease resistance, yield potential, and other agronomic traits, so that when breeding crosses are made, the selection process can proceed more efficiently with pre-screened parental material that is guaranteed to contribute desired traits to the progeny.
2Adaptability or versatility
If multiple desirable traits are combined in a single maize variety through breeding, then the variety achieves maximal yield over different conditions and environments, but the breeding process becomes more complex and time-consuming
Solution Approach 1:
The patent applies universality by developing a core panel of inbred lines that each possess multiple desirable traits simultaneously - for example, some inbreds have both disease resistance and drought tolerance, while others have yield potential combined with stress tolerance. These multi-trait inbred lines serve as universal parental sources that can be used across different breeding programs and environmental conditions, reducing the need to develop separate specialized lines for each trait combination.
Solution Approach 2:
The patent applies parameter changes by systematically varying key breeding parameters including the selection of specific inbred line combinations, optimization of cross-pollination timing and methods, and adjustment of selection criteria based on environmental conditions. By changing these parameters strategically, the breeding program can efficiently combine multiple traits while managing complexity - for instance, using molecular markers to track multiple traits simultaneously rather than relying solely on phenotypic selection.
Data Source
AI summary
A novel maize variety designated PH47R1 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH47R1 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH47R1 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 PH47R1 or a locus conversion of PH47R1 with another maize variety.