Inbred Corn Line CB11 Breeding Contradictions
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Solution Overview
Problem
The development of new corn inbred lines is hindered by the unpredictability of genetic traits due to environmental factors and the time-consuming process of breeding, which requires precise planning and significant resources, making it challenging to identify superior plants and produce commercially viable hybrids.
Innovation Solution
The introduction of the inbred corn line CB11, which can be used to produce hybrids with desirable traits such as high yield, disease resistance, and improved agronomic qualities, through methods like self-pollination, dihaploid breeding, and genetic transformation to incorporate transgenes for traits like male sterility, herbicide resistance, and improved nutritional content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional breeding methods are used to develop new corn inbred lines, then genetic diversity and trait combination are improved, but the process is time-consuming and unpredictable due to environmental factors masking true genotypic value
Solution Approach 1:
The patent applies preliminary action by creating and maintaining a structured breeding population with known genetic relationships before the actual selection process. The inbred line CB11 is developed through controlled self-pollination and selection cycles, establishing a genetically defined population that can be efficiently utilized for hybrid development without requiring lengthy re-establishment of breeding populations.
Solution Approach 2:
The patent implements feedback through systematic evaluation of inbred lines and their hybrid combinations in multiple environments over several years. Performance data from these evaluations is used to select superior lines for further development, creating a iterative process that refines genetic material based on observed performance rather than relying solely on theoretical genetic combinations.
2Measurement precision
If replicated evaluations are conducted to accurately estimate genetic worth, then measurement precision of genetic value is improved, but the complexity and resource requirements increase
Solution Approach 1:
The patent applies segmentation by dividing the breeding program into distinct functional components: inbred line development, hybrid combination testing, and performance evaluation. This segmentation allows each component to be optimized independently, with inbred lines developed through controlled self-pollination and selection, then evaluated in structured hybrid combinations across multiple environments, separating the complexity of genetic development from the complexity of evaluation.
Solution Approach 2:
The patent demonstrates multi-functionality by developing inbred lines that serve multiple purposes: they can be used as parental lines for hybrid development, evaluated for pure line performance, and tested in various environmental conditions. The same genetic material serves both as a source of hybrid vigor and as a subject of performance evaluation, reducing the need for separate specialized populations.
3Reliability
If extensive testing in multiple environments is performed, then reliability of breeding line performance is improved, but the time required for cultivar development increases
Solution Approach 1:
The patent applies preliminary action by conducting initial selection and evaluation of inbred lines in controlled conditions before proceeding to multi-environment testing. The structured breeding program establishes promising lines through controlled self-pollination and selection cycles, allowing subsequent field testing to focus on verifying performance rather than initial line development, thereby reducing overall development time while maintaining reliability.
Solution Approach 2:
The patent implements continuity of useful action through ongoing selection and evaluation processes that continue across multiple generations and environments. The breeding program maintains continuous improvement by systematically evaluating hybrid combinations and inbred lines in successive years, ensuring that performance data accumulates over time without interruption, thereby establishing reliable performance characteristics efficiently.
Data Source
AI summary
An inbred corn line, designated CB11, is disclosed. The invention relates to the seeds of inbred corn line CB11, to the plants and plant parts of inbred corn line CB11 and to methods for producing a corn plant, either inbred or hybrid, by crossing the inbred line CB11 with itself or another corn line. 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 inbred corn lines derived from the inbred corn line CB11.