Flavonoid diversification in Achillea ptarmica and allied taxa |
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Authors: | Karin Valant-Vetschera |
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Institution: | Institute of Botany, University of Vienna, Rennweg 14, A-1030 Vienna, Austria |
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Abstract: | More than 50 collections of 12 species forming the A. ptarmica group have been analysed for their leaf flavonoids. C-Glycosylflavones (iso-orientin and derivatives, vicenins and lucenins) were found to be the main components, whereas flavonol 3-O-glycosides (based on quercetin and kaempferol) and flavone 7-O-glycosides (based on luteolin and diosmetin) were of restricted distribution. Infraspecific variability regarding C-glycosylflavones was observed in most of the taxa investigated. By contrast, flavonol 3-O-glycosides appeared to be stable characters and were sometimes accumulated instead of C-glycosylflavones. In addition to the flavonoids, the geographical distribution patterns and the possible origin of the A. sibirica in Eastern Asia are briefly discussed. |
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Keywords: | Compositae-Anthemideae flavonoid accumulation flavonol glycosides infraspecific variability systematics |
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