Transgenic Barb Fluorescent Protein Expression for Color Visualization
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Solution Overview
Problem
Existing transgenic fish technologies have limitations in producing barbs that express fluorescent proteins, which are desirable for the ornamental fish industry to enhance color visualization.
Innovation Solution
The development of transgenic orange and purple barbs using expression cassettes encoding yellow fluorescent protein (YFP) and purple fluorescent protein (PFP), respectively, to introduce specific transgenic integration events, such as the Orange Barb 1 and Purple Barb 1 transformation events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If transgenic technology is used to introduce fluorescent proteins into barbs, then color visualization is enhanced, but the complexity of the breeding process increases
Solution Approach 1:
The patent segments the transgenic integration process into distinct transformation events (Orange Barb 1, Purple Barb 1, etc.), where each event represents a specific integration of fluorescent protein genes into the barb genome. This segmentation allows for systematic tracking and selection of transgenic individuals with desired fluorescent traits, simplifying the overall breeding complexity by breaking it down into manageable stages.
Solution Approach 2:
The patent employs preliminary action by first establishing stable transgenic lines through initial transformation events before proceeding to subsequent breeding generations. The expression cassettes encoding fluorescent proteins are introduced and stabilized in early generations, allowing these traits to be inherited and refined in later generations, thereby reducing the complexity of achieving consistent fluorescent expression.
2Manufacturing precision
If multiple transformation events are introduced to achieve vibrant colors, then product offering quality improves, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies local quality by introducing specific fluorescent protein genes (yellow fluorescent protein for orange color, purple fluorescent protein for purple color) at specific locations in the genome through targeted transformation events. Each transformation event (Orange Barb 1, Purple Barb 1) introduces the appropriate fluorescent protein to achieve the desired local color expression in specific barb tissues, allowing precise control over color quality without requiring complex global modifications.
Solution Approach 2:
The patent utilizes parameter changes by varying the type of fluorescent protein introduced (yellow vs. purple) and the specific transformation event number to achieve different color outcomes. By changing the genetic parameters (different expression cassettes, different integration events), the patent can produce barbs with vibrant orange or purple colors, thereby improving product quality through controlled parameter variation rather than complex manufacturing processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach results in fertile, transgenic barbs that exhibit vibrant orange or purple colors, improving the ornamental fish industry's product offerings by enhancing color visibility and potentially serving as valuable scientific research tools.
Implementation Method 1
expression cassettes encoding yellow fluorescent protein (YFP) and purple fluorescent protein (PFP), respectively, to introduce specific transgenic integration events
Data Source
AI summary
The present invention relates to transgenic ornamental barbs, as well as methods of making such fish by in vitro fertilization techniques. Also disclosed are methods of establishing a population of such transgenic barbs and methods of providing them to the ornamental fish industry for the purpose of marketing.