Inbred Corn Line CB90 Transgenic Trait Integration
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Solution Overview
Problem
There is a need for stable, high-yielding corn hybrids that are agronomically sound to maximize ear or kernel production, addressing the challenge of developing superior parental lines for corn breeding.
Innovation Solution
The development of a novel inbred corn line designated CB90, which includes methods for producing seeds, plants, and variants thereof, utilizing mutagenesis techniques and transgenic approaches to introduce desired traits such as herbicide resistance, disease resistance, and improved nutritional quality, while maintaining the physiological and morphological characteristics of the CB90 line.
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 yield potential and agronomic soundness are limited
Solution Approach 1:
The patent applies parameter changes by introducing transgenes that modify specific traits of the CB90 inbred line, such as herbicide resistance (glyphosate tolerance) and insect resistance (Bt toxin production). These genetic parameter changes enable the corn hybrids to achieve higher yield potential while maintaining agronomic soundness through controlled introduction of desirable traits rather than conventional breeding limitations.
Solution Approach 2:
The patent creates composite genetic structures by combining the CB90 inbred line genome with additional transgenic elements. The resulting hybrids possess a composite genetic makeup that integrates the stable physiological and morphological characteristics of CB90 with introduced traits for herbicide resistance, insect resistance, and improved yield, thereby resolving the contradiction between productivity and reliability.
2Adaptability or versatility
If transgenic approaches are used to introduce desired traits, then herbicide resistance and disease resistance can be achieved, but genetic stability may be compromised
Solution Approach 1:
The patent applies local quality by introducing transgenes at specific locations in the CB90 genome to confer particular traits (herbicide resistance, insect resistance) without altering the overall genetic stability of the inbred line. The transgenic modifications are localized to specific genes or chromosomal regions, allowing the rest of the genome to maintain its stable physiological and morphological characteristics while gaining new adaptability.
3Productivity
If mutagenesis techniques are applied to create variants, then new traits can be generated, but breeding complexity increases
Solution Approach 1:
The patent replaces complex mechanical breeding processes with more efficient genetic engineering approaches. Instead of traditional mutagenesis and extensive phenotypic screening, the invention uses targeted transgene introduction and molecular marker-assisted selection to achieve trait innovation. This substitution reduces breeding process complexity while maintaining or enhancing productivity through more precise and controllable genetic modification methods.
Data Source
AI summary
Inbred corn line, designated CB90, are disclosed. The invention relates to the seeds of inbred corn line CB90, to the plants and plant parts of inbred corn line CB90 and to methods for producing a corn plant, either inbred or hybrid, by crossing inbred corn line CB90 with itself or another corn line. The invention also relates to products produced from the seeds, plants, or parts thereof, of inbred corn line CB90 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 CB90.