Abstract
Chemical and genetic differences of 11 individuals of Angelica lignescens and 3 individuals of Melanoselinum decipiens were studied to determine whether volatile components could be used as taxonomical markers and to examine the correlation between molecular and chemical markers. The volatiles were isolated from each individual by distillation–extraction and analyzed by gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS). The same plants were analyzed by Inter Simple Sequence Repeat (ISSR) using 14 arbitrary primers. The main component of volatile fraction isolated from vegetative aerial parts of A. lignescens was limonene (57–86%) while in M. decipiens the main components detected were β-pinene (38–47%) and sabinene (1–33%). Cluster analyses based both on the chemical composition of volatile fraction and on molecular markers grouped the 14 accessions in two main groups, corresponding to each of the two species under study. Considering the species together, a moderate Pearson's correlation of r = 0.61 was obtained between the two analyses.
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