Maize Inbred PH240M Breeding Platform
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Solution Overview
Problem
The development of new maize varieties and hybrids is a time-consuming process that requires precise planning and efficient resource use, aiming to combine desirable traits such as disease resistance, drought tolerance, and high yield, while maintaining stability across different conditions and environments.
Innovation Solution
The development of the novel maize variety PH240M, which involves crossing and backcrossing to introduce specific traits like male sterility, herbicide tolerance, and disease resistance, using genetic manipulation and transformation techniques, along with cytoplasmic factors to enhance breeding efficiency and hybrid production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional maize variety development processes are used to combine desirable traits, then the resulting varieties have improved agronomic characteristics and yield, but the development process takes 6-12 years and requires significant resources
Solution Approach 1:
The patent applies preliminary action by developing and maintaining a pre-characterized inbred maize line (PH240M) with known desirable traits including disease resistance, drought tolerance, and yield characteristics. This pre-developed genetic platform can be directly used in hybrid production without requiring the full 6-12 year breeding cycle for each new variety, as the foundational genetic material has already been optimized and tested
Solution Approach 2:
The patent employs copying by using the PH240M inbred line as a reusable genetic platform that can be repeatedly crossed with different inbred lines to produce multiple hybrid varieties. This eliminates the need to redevelop the same desirable traits in each new variety, significantly reducing the time and resources required for variety development while maintaining consistent agronomic performance
2Adaptability or versatility
If multiple desirable traits are combined in a single variety through traditional breeding, then the variety achieves high yield and stability, but the process requires precise planning and efficient resource use with minimal changes in direction
Solution Approach 1:
The patent applies universality by creating the PH240M inbred line as a multi-functional genetic platform that simultaneously provides multiple desirable traits including disease resistance, drought tolerance, and high yield. This single inbred line can be used across different hybrid combinations and environmental conditions, reducing the need for separate breeding programs for each trait and simplifying overall breeding program complexity
Solution Approach 2:
The patent uses the PH240M inbred line as an intermediary that facilitates the combination of multiple desirable traits through controlled crosses with other inbred lines. This intermediary approach allows breeders to systematically combine traits through defined crossing schemes rather than attempting complex simultaneous mutations or selections, reducing breeding program complexity while achieving versatile trait combinations
Data Source
AI summary
A novel maize variety designated PH240M and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH240M with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH240M 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 PH240M or a locus conversion of PH240M with another maize variety.