Maize Inbred PH24YB Molecular Marker Breeding
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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 yield improvement.
Innovation Solution
Development of a novel maize variety, PH24YB, through selective breeding and genetic manipulation to introduce desired traits, including resistance to diseases and environmental stresses, and improvement in agronomic characteristics like maturity and yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional plant breeding methods are used to combine desirable traits, then disease resistance and drought tolerance can be improved, but the time required to develop new varieties and achieve uniformity is excessive
Solution Approach 1:
The patent applies parameter changes by utilizing molecular markers to track and select for specific genetic traits during breeding. This allows breeders to monitor the presence and combination of desired traits (such as disease resistance genes) at the molecular level, significantly accelerating the selection process compared to traditional phenotypic selection methods and reducing the time required to develop uniform varieties.
Solution Approach 2:
The patent replaces traditional mechanical/phenotypic selection methods with molecular marker-based selection. Instead of visually assessing plant traits in the field, breeders use DNA markers to detect and select for desired genetic characteristics, substituting a biochemical analysis system for traditional agricultural practices and dramatically shortening the breeding cycle.
2Productivity
If multiple desirable traits are combined in a single variety, then yield and stress resistance are improved, but the complexity of the breeding process increases
Solution Approach 1:
The patent applies segmentation by breaking down the complex task of combining multiple traits into manageable components through the use of specific molecular markers for each trait. Each marker tracks a particular gene or genomic region, allowing breeders to independently monitor and select for individual traits (such as separate markers for disease resistance, drought tolerance, and yield components) and then combine them systematically in a single variety.
3Manufacturing precision
If uniformity of plant characteristics is improved for mechanical harvesting, then harvest efficiency is increased, but genetic diversity and adaptability are reduced
Solution Approach 1:
The patent resolves this contradiction by changing the parameter of selection from phenotypic uniformity to genotypic precision. Molecular markers enable breeders to select for uniform expression of specific agronomic traits (plant height, maturity, ear position) while maintaining genetic diversity at other loci. This allows the development of varieties that are uniformly suited for mechanical harvesting while retaining adaptability through preserved genetic variation elsewhere in the genome.
Data Source
AI summary
A novel maize variety designated PH24YB and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PH24YB with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH24YB 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 PH24YB or a locus conversion of PH24YB with another maize variety.