Maize Inbred PH48YB Accelerates Hybrid Development
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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 delivering finished seed to farmers, 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, PH48YB, 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 breeding methods are used to develop new maize varieties, then desirable traits such as disease resistance and drought tolerance can be incorporated, but the development process takes six to twelve years which is too time-consuming
Solution Approach 1:
The patent applies preliminary action by developing and maintaining a pre-characterized inbred maize line (PH48YB) with known desirable traits including disease resistance and drought tolerance. This pre-developed genetic foundation allows breeders to immediately use this inbred line in hybrid development programs, eliminating the need to start breeding from scratch and significantly reducing the overall development timeline while maintaining reliable trait inheritance
2Productivity
If traditional breeding methods are used to develop new maize varieties, then stable high-yielding varieties can be created, but the process takes six to twelve years from first cross to finished seed delivery
Solution Approach 1:
The patent implements preliminary action by creating and characterizing inbred line PH48YB in advance with proven high-yielding characteristics. This pre-developed inbred line serves as a ready-to-use genetic resource that can be immediately crossed with other inbreds to produce hybrids, thereby accelerating the path to market while maintaining stable high-yield performance
Solution Approach 2:
The patent applies parameter changes by modifying the breeding approach from traditional multi-year variety development to a streamlined hybrid development model using pre-characterized inbred lines. This changes the time parameter from 6-12 years to a significantly shorter period while maintaining or improving yield parameters through the use of PH48YB's optimized genetic composition
3Stability of the object's composition
If novel maize variety PH48YB is developed with enhanced traits, then yield stability across various conditions can be improved, but genetic manipulation and transformation add complexity to the breeding process
Solution Approach 1:
The patent applies parameter changes by creating inbred line PH48YB with specifically optimized genetic parameters that confer yield stability across diverse environmental conditions. The inbred line incorporates modified traits through controlled genetic manipulation and transformation, achieving enhanced yield stability while the patent documentation provides detailed protocols to manage the associated breeding process complexity
Data Source
AI summary
A novel maize variety designated PH48YB and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH48YB with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH48YB 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 PH48YB or a locus conversion of PH48YB with another maize variety.