Maize Inbred PH2SWG Trait Stabilization
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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, 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
A novel maize variety, PH2SWG, is developed through careful breeding and selection, incorporating traits like male sterility, disease resistance, and improved agronomic characteristics, using backcross conversion, genetic manipulation, and transformation to introduce desired genetic loci, allowing for the creation of hybrid seeds with enhanced traits.
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 high yield can be combined, but the process takes six to twelve years and is time-consuming
Solution Approach 1:
The patent applies preliminary action by pre-characterizing the PH2SWG inbred line with multiple desirable traits (disease resistance, drought tolerance, high yield potential) before hybrid development. This allows breeders to start with a pre-optimized genetic base, eliminating the need to develop these traits from scratch in each new variety, thus reducing the overall breeding cycle time while maintaining trait stability
2Reliability
If multiple desirable traits are combined in a single variety through traditional breeding, then agronomic soundness is improved, but the complexity of the breeding program increases
Solution Approach 1:
The patent merges multiple desirable traits (disease resistance, drought tolerance, high yield, male sterility) into a single inbred line (PH2SWG) through systematic breeding. This consolidation allows breeders to work with one pre-characterized genetic platform rather than managing multiple separate breeding programs, thereby reducing program complexity while maintaining comprehensive agronomic soundness
3Productivity
If genetic manipulation and transformation are used to introduce traits, then the time required for trait introduction is reduced, but the complexity of the genetic modification process increases
Solution Approach 1:
The patent uses the PH2SWG inbred line as an intermediary genetic platform that has been pre-engineered with desirable traits. Instead of directly manipulating each new hybrid variety, breeders can cross PH2SWG with other lines to transfer its beneficial traits, thereby simplifying the genetic manipulation process while maintaining fast trait introduction speed
Data Source
AI summary
A novel maize variety designated PH2SWG and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2SWG with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2SWG 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 PH2SWG or a locus conversion of PH2SWG with another maize variety.