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Failed PCR of Ganoderma type specimens affects nomenclature
1Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
Phytochemistry
|December 2, 2014
Summary
The nomenclature of Ganoderma, a traditional Chinese medicine, is debated. Researchers recommend internal amplification controls to re-evaluate DNA amplification failures in type specimens.
Area of Science:
- Mycology
- Pharmacognosy
- Molecular Biology
Background:
- The accurate identification and nomenclature of Ganoderma species used in traditional Chinese medicine are critical for efficacy and safety.
- Previous DNA amplification attempts on Ganoderma type specimens failed, leading to conclusions of irreparable DNA degradation.
Purpose of the Study:
- To investigate the reasons for failed DNA amplification in Ganoderma type specimens.
- To address the ongoing debate surrounding the nomenclature of medicinal Ganoderma.
Main Methods:
- Review of previous DNA amplification protocols and results.
- Discussion of the implications of using topotypes as substitute type specimens.
- Recommendation for the implementation of internal amplification controls in future studies.
Main Results:
- The premature use of topotypes as type specimens may have contributed to inaccurate conclusions.
- Failed DNA amplification does not necessarily indicate irreparable degradation; other factors could be involved.
Conclusions:
- Further investigation using internal amplification controls is necessary to definitively assess the DNA integrity of Ganoderma type specimens.
- Clarifying Ganoderma nomenclature is essential for the reliable application of this important Chinese medicine.
