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Selected Publication:

Type of publication: Journal Article
Type of document: Full Paper

Year: 2010

Authors: Schmiderer, C; Mader, E; Novak, J

Title: DNA-based identification of Helleborus niger by high-resolution melting analysis.

Source: Planta Med. 2010; 76(16):1934-1937

Authors Vetmeduni Vienna:

Mader Eduard
Novak Johannes
Schmiderer Corinna

Vetmed Research Units
Institute of Animal Nutrition and Functional Plant Compounds

Hellbori nigri rhizoma is a drug that is difficult to distinguish from other species of the genus Helleborus. In this communication we present a DNA-based identification by high-resolution melting analysis (HRM) that is able to differentiate between Helleborus niger and other species of the genus. HRM is a very specific, time- and labour-saving method for identifying DNA sequence variations and is ideally suitable for routine PCR analysis. The HRM assay developed is specific for the genus Helleborus. This method not only detects the presence of the target species H. niger but also, to a certain extent, identifies other Helleborus species by their different melting curve shapes. Markers were developed based on the trnL-trnF intergenic spacer and on the matK sequence. For an unambiguous identification of Helleborus niger, melting curves of both markers should be used.

Keywords Pubmed: Base Sequence
DNA, Intergenic
DNA, Plant*
Drug Contamination/prevention & control*
Genes, Plant
Genetic Markers
Genetic Variation*
Plants, Medicinal
Polymerase Chain Reaction/methods*
Species Specificity

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