Maize PH1TRS Breeding via Marker-Assisted Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and uniformity, which are essential for efficient crop production and mechanical harvesting.
Innovation Solution
Development of a novel maize variety, PH1TRS, through specific breeding processes that involve crossing, backcrossing, and transformation to introduce desired traits, resulting in a hybrid with improved abiotic stress tolerance, disease resistance, and uniform plant characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding methods are used to combine desirable traits, then multiple traits can be integrated into a single variety, but the process is time-consuming and results in limited genetic improvement
Solution Approach 1:
The patent applies parameter changes by utilizing molecular marker technology to transform the traditional phenotype-based selection process into a genotype-based selection process. This allows breeders to select plants based on DNA markers associated with desirable traits rather than waiting for phenotypic expression, significantly accelerating the breeding process while maintaining the ability to combine multiple traits.
Solution Approach 2:
The patent replaces the mechanical and time-intensive process of traditional field-based phenotypic selection with a molecular biology-based genotypic selection system. By using DNA markers to track and select for desirable traits, the method substitutes laboratory-based molecular analysis for field-based observational selection, dramatically reducing breeding cycle time.
2Manufacturing precision
If traditional breeding focuses on uniformity for mechanical harvesting, then plant characteristics become uniform, but genetic diversity and adaptability to stress conditions decrease
Solution Approach 1:
The patent applies segmentation by separating the selection criteria into distinct molecular marker categories - some markers selected for uniformity traits (plant height, maturity timing) and other markers selected for stress resistance traits. This allows independent selection and combination of uniformity and resistance traits at the molecular level, resolving the contradiction between uniformity and adaptability.
Solution Approach 2:
The patent implements local quality by selecting for different traits at different genomic locations using specific molecular markers. Uniformity traits are selected at certain marker loci while stress resistance traits are selected at other marker loci, allowing the plant to exhibit both uniformity (for mechanical harvesting) and localized resistance qualities (for stress tolerance) simultaneously.
3Adaptability or versatility
If backcrossing is used to introgress specific traits, then desired loci can be transferred to a recurrent parent, but the process requires multiple generations and reduces productivity
Solution Approach 1:
The patent applies preliminary action by using molecular markers to identify and select plants carrying desired traits at early generations of backcrossing. Instead of waiting multiple generations for trait expression and selection, the marker-assisted system allows immediate identification of plants with the desired loci, enabling faster progression through backcross generations and improving breeding productivity.
Data Source
AI summary
A novel maize variety designated PH1TRS and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH1TRS with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH1TRS through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PH1TRS or a locus conversion of PH1TRS with another maize variety.