Maize Inbred PH2DMA Trait Combination Uniformity
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Solution Overview
Problem
Current maize breeding techniques face challenges in combining desirable traits such as disease resistance, drought tolerance, and improved agronomic qualities into a single variety, leading to inconsistencies in crop uniformity and yield.
Innovation Solution
The development of a novel maize variety, PH2DMA, which involves crossing and backcrossing to introduce specific traits through locus conversion and transformation, resulting in a hybrid with enhanced resistance to various stresses and improved agronomic characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional plant breeding techniques are used to combine desirable traits, then multiple traits can be introduced into a single variety, but the uniformity of plant characteristics deteriorates
Solution Approach 1:
The patent segments the breeding process into distinct stages: developing individual inbred lines with specific traits, then systematically crossing them to combine multiple traits while maintaining uniformity through controlled reproduction and selection of consistent phenotypes
Solution Approach 2:
The patent changes key parameters including generation number (F1, F2, F3, etc.), crossing patterns (single cross, double cross, three-way cross), and selection criteria to optimize both trait combination and uniformity achievement at different breeding stages
2Adaptability or versatility
If traditional plant breeding is used to develop new varieties, then genetic diversity can be increased, but the time required for variety development increases
Solution Approach 1:
The patent applies preliminary action by pre-developing and characterizing multiple inbred lines with known trait profiles before combining them, allowing for more efficient variety development and reducing the overall breeding cycle time
Solution Approach 2:
The patent merges multiple inbred lines containing different desirable traits into hybrid varieties, achieving genetic diversity through combination while streamlining the process through systematic crossing protocols
3Stability of the object's composition
If inbred lines are developed through multiple generations of selfing, then genetic uniformity within lines is improved, but the complexity of the breeding process increases
Solution Approach 1:
The patent uses molecular markers to copy and track specific genetic patterns through generations, allowing for efficient monitoring of homozygosity without requiring extensive phenotypic evaluation at each generation
Solution Approach 2:
The patent replaces traditional mechanical/visual assessment methods with molecular marker-based genetic analysis to determine homozygosity, simplifying the breeding process by providing objective, rapid genotyping data
Data Source
AI summary
A novel maize variety designated PH2DMA and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety PH2DMA with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PH2DMA 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 PH2DMA or a locus conversion of PH2DMA with another maize variety.