Maize Inbred 1PFPT76 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 there is a continuous need for stable, high-yielding maize varieties that are agronomically sound and adaptable to various conditions and environments.
Innovation Solution
A novel maize variety, 1PFPT76, and processes for making it are provided, including crossing maize variety 1PFPT76 with another maize plant to produce hybrid maize seed, plants, or plant parts, and introducing traits such as male sterility, herbicide tolerance, and disease resistance through backcross conversion, genetic manipulation, and transformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize breeding processes are used to develop new varieties, then stable and agronomically sound varieties can be achieved, but the development time is excessively long (six to twelve years)
Solution Approach 1:
The patent applies preliminary action by using male-sterile inbred lines and predetermined hybridization schemes to prepare the breeding process in advance. The male-sterile lines are developed and maintained ready for crossing, eliminating the need for time-consuming emasculation and selection steps during the actual breeding process. This allows the breeding program to proceed more rapidly while maintaining variety stability.
Solution Approach 2:
The patent employs copying by creating and maintaining multiple copies of proven inbred lines and their hybrid combinations. Once a stable, high-yielding hybrid is identified, multiple seed lots are produced and distributed, allowing the successful genotype to be replicated across different locations and seasons without repeating the entire breeding process, thus reducing development time while preserving variety stability.
2Adaptability or versatility
If maize varieties are developed to be adaptable to various conditions and environments, then broader applicability is achieved, but the complexity of the breeding program increases
Solution Approach 1:
The patent applies universality by developing inbred lines and hybrid combinations that perform acceptably across multiple environments and production systems. The breeding program seeks to create varieties with broad adaptability rather than optimizing for single specific conditions. This multi-functional approach allows the same variety to serve multiple purposes and locations, reducing the need for separate breeding programs for different environments.
Solution Approach 2:
The patent uses segmentation by dividing the breeding program into distinct components: development of male-sterile inbred lines, development of maintainer lines, and systematic hybridization trials across different locations. This segmented approach allows each component to be optimized independently and then integrated, managing program complexity while achieving environmental adaptability through multi-location testing.
Data Source
AI summary
A novel maize variety designated 1PFPT76 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 1PFPT76 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 1PFPT76 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 1PFPT76 or a locus conversion of 1PFPT76 with another maize variety.