Inbred Corn Line CB119 Hybrid Yield Stability
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Solution Overview
Problem
There is a need for stable, high-yielding corn hybrids that exhibit superior agronomic traits to maximize ear or kernel production, addressing the challenge of developing parental lines that can efficiently supply food for both humans and animals.
Innovation Solution
The development of a novel inbred corn line, CB119, which includes methods for producing seeds, plants, and variants with specific morphological and physiological characteristics, utilizing mutagenesis techniques like TILLING and transgenic approaches to introduce desired traits such as herbicide resistance, disease resistance, and improved nutritional quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional breeding methods are used to develop corn hybrids, then parental lines can be selected, but the yield and agronomic performance are limited and not optimized
Solution Approach 1:
The patent applies preliminary action by pre-screening and selecting superior inbred lines (like CB119) with optimized genetic characteristics before hybrid development. The inbred line CB119 was developed through systematic breeding and evaluation to possess predetermined traits including disease resistance, yield potential, and adaptability, allowing breeders to start with pre-optimized parental material rather than developing hybrids from unselected populations
Solution Approach 2:
The patent employs parameter changes by modifying genetic parameters through selective breeding to create inbred lines with superior characteristics. The inbred line CB119 exhibits changed genetic parameters including enhanced disease resistance, optimized maturity timing, and improved yield components compared to conventional lines, thereby improving hybrid performance
2Productivity
If inbred lines are developed to maximize yield, then parental quality improves, but the development process becomes more complex and time-consuming
Solution Approach 1:
The patent applies local quality by focusing breeding efforts on developing specific inbred lines (such as CB119) with specialized local adaptations and trait combinations optimized for particular regions or uses. Rather than attempting to create universally superior lines, the breeding program develops lines with specific localized advantages including regional disease resistance, maturity timing for specific zones, and yield components suited to local growing conditions
Solution Approach 2:
The patent employs segmentation by dividing the breeding program into distinct components: developing specific inbred lines (CB119 and other parental lines), testing them in controlled crosses, evaluating hybrid performance, and then scaling up production. This segmented approach allows systematic development and validation of parental lines before committing to large-scale hybrid production, reducing overall program complexity
Data Source
AI summary
Inbred corn line, designated CB119, are disclosed. The invention relates to the seeds of inbred corn line CB119, to the plants and plant parts of inbred corn line CB119 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line CB119 with itself or another corn line. The invention also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line CB119 and/or of the hybrids produced using the inbred as a parent. The invention further relates to methods for producing a corn plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other corn lines derived from inbred corn line CB119.