DNA Barcode Screening for Floccularia luteovirens Polyphenol Content
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Solution Overview
Problem
Traditional breeding methods for Floccularia luteovirens are inaccurate, time-consuming, and labor-intensive, making it difficult to identify and cultivate high-quality strains with high total polyphenol content, especially due to the challenges of morphological identification and high-altitude collection environments.
Innovation Solution
A DNA barcode and primer group are developed for fluorescent PCR amplification, using simple sequence repeats (SSR) to quickly and accurately screen for high total polyphenol content in Floccularia luteovirens, enabling efficient breeding and identification of high-quality strains with stable and reliable results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional morphological breeding methods are used for Floccularia luteovirens, then breeding can be performed with simple equipment, but identification accuracy is low and it is time-consuming and labor-intensive
Solution Approach 1:
The patent replaces traditional morphological identification methods with molecular biology techniques (DNA extraction, PCR amplification, sequencing). This substitution of mechanical/visual inspection with biochemical analysis dramatically improves identification accuracy while reducing the time required for breeding decisions.
Solution Approach 2:
The patent introduces DNA sequences as an intermediary marker to indirectly assess polyphenol content. Instead of directly measuring complex biochemical compositions, the method uses DNA barcodes and SSR markers as mediators that correlate with polyphenol content, enabling rapid screening without time-consuming chemical analysis.
2Reliability
If existing DNA barcode methods (RFLP, RAPD, SNP) are used, then molecular identification can be achieved, but operation complexity increases and results reliability decreases
Solution Approach 1:
The patent extracts and focuses on specific simple sequence repeat (SSR) regions from the genome that are strongly correlated with polyphenol content. By isolating these specific markers rather than using whole-genome methods, the technique achieves high reliability with simpler, more targeted operations compared to comprehensive methods like SNP analysis.
Solution Approach 2:
The patent changes the detection parameter from complex genomic structures to simple repeat unit counts in SSR regions. This parameter transformation allows reliable differentiation of strains with varying polyphenol content using straightforward PCR and fragment analysis, avoiding the complexity of RFLP digestion patterns or SNP genotyping workflows.
3Measurement precision
If comprehensive biochemical analysis is performed to determine polyphenol content, then accurate quality assessment can be achieved, but the process becomes time-consuming and labor-intensive
Solution Approach 1:
The patent performs preliminary genetic screening using DNA barcodes and SSR markers to identify candidate strains with high polyphenol content potential before conducting actual biochemical analysis. This preliminary genetic assessment filters out low-potential strains, making the overall process more efficient by avoiding comprehensive biochemical analysis of all samples.
Solution Approach 2:
The patent develops a universal DNA-based screening system that can assess polyphenol content potential across all Floccularia luteovirens strains simultaneously through standardized PCR protocols. This universal method replaces individual, time-consuming biochemical assays for each strain, dramatically improving screening productivity while maintaining accuracy through correlation with actual polyphenol measurements.
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
The DNA barcode and primer group enable rapid, accurate, and cost-effective screening of high total polyphenol content in Floccularia luteovirens, facilitating high-quality breeding and germplasm resource management with improved accuracy and efficiency.
Implementation Method 1
fluorescent PCR amplification is carried out; and a DNA barcode which effectively corresponds to a total polyphenol content is established
Data Source
AI summary
The present invention discloses a DNA barcode, a primer group and application for screening a total polyphenol content index of Floccularia luteovirens, belonging to the technical field of screening of edible fungi germplasm resources. Compared with a traditional breeding method and other existing DNA barcode technologies, the present invention has the advantages of time saving, labor saving, money saving, accuracy and high efficiency, plays a positive role in original place identification and genetic breeding of high-quality Floccularia luteovirens, and also provides an effective method for identification and protection of germplasm resources.