Inbred Corn Line D080224 Yield and Disease Resistance
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Solution Overview
Problem
The development of new inbred corn lines is a slow and costly process that requires expertise, and existing inbred parent corn lines lose commercial competitiveness over time, necessitating the creation of improved germplasm with enhanced yield, disease resistance, and adaptability to various production conditions.
Innovation Solution
The introduction of the inbred corn line D080224, which is a new yellow dent inbred corn line with specific physiological and morphological characteristics, along with methods for producing and breeding corn plants using techniques such as self-pollination, sib-pollination, and tissue culture to create uniform and stable inbred and hybrid corn plants, as well as the use of transgenic approaches to introduce desirable traits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If traditional inbreeding techniques (self-pollination and sib-pollination) are used to develop new inbred corn lines, then genetic uniformity and homozygosity are achieved, but the process is slow and costly
Solution Approach 1:
The patent performs required breeding actions in advance by using speed breeding techniques that accelerate multiple generations of inbreeding. Controlled pollination methods and optimized growth conditions allow several generations to be completed in compressed timeframes, achieving genetic uniformity faster than traditional methods while maintaining the necessary homozygosity through preliminary structured breeding designs.
Solution Approach 2:
The patent changes key breeding parameters including extending photoperiods to accelerate flowering, optimizing nutrient regimes to speed up plant development, and controlling environmental conditions to enhance generation turnover. These parameter changes enable multiple generations of inbreeding to occur in reduced time while maintaining genetic uniformity through controlled pollination protocols.
2Ease of manufacture
If existing inbred parent corn lines are used for breeding, then breeding process is straightforward, but they lose commercial competitiveness over time
Solution Approach 1:
The patent enables inbred lines to maintain their own competitiveness through continuous self-improvement cycles. By implementing systematic evaluation protocols and using the inbred lines themselves as parents in controlled crossing programs, the system generates renewed inbred lines with improved yield performance while maintaining breeding process simplicity through standardized procedures.
Solution Approach 2:
The patent incorporates feedback mechanisms where yield performance and other agronomic traits of existing inbred lines are systematically evaluated, and this information feeds back into the breeding program to guide selection of parents for the next generation. This feedback loop ensures that inbred lines maintain commercial competitiveness by continuously incorporating superior genetic combinations while keeping the breeding process straightforward through data-driven decision making.
3Stability of the object's composition
If more inbreeding is performed to improve line uniformity, then plant uniformity enhances mechanical harvestability, but vigor of the lines decreases
Solution Approach 1:
The patent applies partial inbreeding strategies where controlled self-pollination is used for a limited number of generations to achieve sufficient uniformity for mechanical harvestability, then stops before excessive inbreeding depression occurs. This partial action approach maintains adequate plant vigor while achieving the necessary level of uniformity through optimized inbreeding duration and interspersed crossing events to refresh vigor.
Solution Approach 2:
The patent dynamically adjusts the inbreeding intensity and duration based on real-time monitoring of plant vigor and uniformity metrics. By making the inbreeding process dynamic rather than fixed, the system can optimize the balance between achieving uniformity for mechanical harvestability and maintaining sufficient plant vigor, adapting the breeding protocol to prevent inbreeding depression while ensuring harvestability.
Data Source
AI summary
An inbred corn line, designated D080224, the plants and seeds of the inbred corn line D080224, methods for producing a corn plant, either inbred or hybrid, produced by crossing the inbred corn line D080224 with itself or with another corn plant, and hybrid corn seeds and plants produced by crossing the inbred line D080224 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 D080224, to methods for producing other inbred corn lines derived from inbred corn line D080224 and to the inbred corn lines derived by the use of those methods.