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Planta Medica 2006-Aug

Authentication of medicinal plant botanical identity by amplified fragmented length polymorphism dominant DNA marker: inferences from the Plectranthus genus.

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Krækjan er vistuð á klemmuspjaldið
Helna Passinho-Soares
Durvalina Felix
Maria Auxiliadora Kaplan
Marcia Margis-Pinheiro
Rogério Margis

Lykilorð

Útdráttur

In Brazil, Plectranthus species are known as "boldo" and have been used in popular medicine for analgesic and dyspeptic purposes. Plectranthus need to be well identified in order to be used as commercially genuine medicinal plants. Here we describe AFLP DNA patterns able to distinguish among different Pectranthus species. The genetic variability of P. grandis Cramer, P. barbatus Andr. and P. ornatus Codd was analyzed with two sets of AFLP primers allowing detection of 241 loci. A total of 22 monomorphic loci were identified in P. barbatus, 15 in P. grandis and 30 in P. ornatus. Among these, 5 loci were informative and species-specific to P. barbatus, 3 to P. grandis and 2 loci were unique to P. ornatus. The AFLP pattern analyzed by different clustering methods assembled individuals according to their species. So far, AFLP represents a genuine and strong method to certify medicinal plant materials.

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