Inbred Corn Line LLD19BM Yield and Vigor Maintenance
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Solution Overview
Problem
Existing corn breeding techniques face challenges in developing new inbred corn lines that maintain commercial competitiveness due to decreased vigor and the need for extensive expertise and resources, with existing inbred parent lines losing their competitive edge over time.
Innovation Solution
The development of a new inbred corn line, LLD19BM, which offers improved tonnage and digestibility, along with trait technologies and seed treatment options to enhance yield production and provide cost-effective control against insects, weeds, and diseases, thereby maintaining hybrid flexibility and competitiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional inbreeding techniques are used to develop new inbred corn lines, then new inbred lines can be produced, but the vigor of the lines decreases and additional inbreeding merely increases seed production without improving performance
Solution Approach 1:
The patent employs a multi-functional breeding approach that combines conventional inbreeding with modern biotechnological methods including molecular marker-assisted selection, tissue culture regeneration, and genetic transformation. This integrated system allows simultaneous achievement of high seed production and maintenance of line vigor through precise genetic management and selection.
Solution Approach 2:
The patent utilizes molecular marker parameters and genetic diversity metrics to monitor and maintain vigor during the inbreeding process. By tracking specific genetic parameters and diversity indices, breeders can make informed decisions to preserve vigor while achieving the desired level of inbreeding for seed production.
2Productivity
If extensive expertise and resources are invested in developing new inbred corn lines, then improved performance can be achieved, but the process becomes complex and resource-intensive
Solution Approach 1:
The patent replaces traditional mechanical and manual breeding methods with biotechnological systems including molecular marker analysis, DNA-based selection, and tissue culture techniques. These substitutions reduce the need for extensive manual expertise and resource-intensive field trials while maintaining or improving selection accuracy and breeding efficiency.
Solution Approach 2:
The patent utilizes molecular copying and genetic fingerprinting techniques to track and select desirable traits through DNA analysis rather than extensive phenotypic evaluation. This allows rapid identification of superior genotypes without requiring complex multi-environment field testing, thereby reducing process complexity while maintaining selection accuracy.
3Duration of action of stationary object
If existing inbred parent lines are used over time, then breeding continuity is maintained, but they lose commercial competitiveness
Solution Approach 1:
The patent implements preliminary genetic evaluation and molecular marker screening of potential parent lines before committing them to long-term breeding programs. This advance assessment ensures that only lines with sustained commercial competitiveness and genetic merit are selected, preventing the decline in performance over time while maintaining breeding program continuity.
Solution Approach 2:
The patent employs continuous feedback mechanisms through molecular marker monitoring and performance tracking of inbred lines over generations. This real-time genetic and phenotypic feedback allows breeders to identify lines that are losing competitiveness and make timely adjustments, thereby maintaining both program continuity and commercial relevance of the parent lines.
Data Source
AI summary
An inbred corn line, designated LLD19BM, the plants and seeds of the inbred corn line LLD19BM, methods for producing a corn plant, either inbred or hybrid, produced by crossing the inbred corn line LLD19BM with itself or with another corn plant, and hybrid corn seeds and plants produced by crossing the inbred line LLD19BM with another corn line or plant and to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic corn plants produced by that method. This invention also relates to inbred corn lines derived from inbred corn line LLD19BM, to methods for producing other inbred corn lines derived from inbred corn line LLD19BM and to the inbred corn lines derived by the use of those methods.