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Updated: Jun 14, 2026
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Application of DNA Barcoding to Identify Medicinal Plants
Published on: November 1, 2024
Identification of poisonous plants by DNA barcoding approach
Ilaria Bruni1, Fabrizio De Mattia, Andrea Galimberti
1ZooPlantLab, Dipartimento di Biotecnologie e Bioscienze, Università degli Studi di Milano-Bicocca, Piazza della Scienza 2, 20126, Milan, Italy.
International Journal of Legal Medicine
|April 1, 2010
Summary
DNA barcoding offers a rapid and accurate method for identifying toxic plants, crucial for diagnosing poisoning cases. Combining specific DNA markers provides a universal tool for unambiguous poisonous plant identification.
Area of Science:
- Botany
- Molecular Biology
- Toxicology
Background:
- Plant poisonings are common, with diagnosis relying on challenging morphological identification.
- Accurate and rapid identification of toxic plants is essential for effective medical treatment.
Purpose of the Study:
- To evaluate DNA barcoding as a universal tool for unambiguous and rapid identification of toxic plants.
- To assess the performance of various DNA barcode regions in discriminating poisonous plants.
Main Methods:
- Five DNA barcode regions (three chloroplast DNA: trnH-psbA, rpoB, matK; two nuclear: At103, sqd1) were analyzed.
- Markers were tested on diverse plant groups, including toxic angiosperms, congeneric species with varying toxicity, and edible vs. poisonous congeners.
Main Results:
- The combination of plastidial (matK) and nuclear (At103) markers demonstrated high resolution for species discrimination.
- matK was identified as a reliable plastidial marker, while trnH-psbA presented alignment challenges.
- The proposed marker combination effectively distinguished toxic hybrids from parental species.
Conclusions:
- DNA barcoding is a powerful and reliable tool for the identification of poisonous plants.
- A combined approach using specific DNA markers enhances accuracy in toxic plant identification.
- This method can aid poison control centers and healthcare professionals in managing plant-related poisonings.
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