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Selected Publication:

Type of publication: Conference Paper in Journal
Type of document: Proceedings Paper
Presentation type: Presentation

Year: 2007

Authors: Mader, E; Bein-Lobmaier, B; Novak, J; Franz, Ch

Title: The effect of contaminating an /-/-alpha-bisabolol with an /-/-alpha-bisabololoxide (A,B)chemotype of tetraploide chamomile.

Source: I International Symposium on Chamomile Research, Development and Production, Presov, Slovak Republic, 7-10 June 2006. Acta Horticulturae (749) 97-102.

Authors Vetmeduni Vienna:

Franz Chlodwig
Mader Eduard
Novak Johannes

Vetmed Research Units
Institute of Animal Nutrition and Functional Plant Compounds

Project(s): Breeding research of medicinal and aromatic plants

Tetraploid highbreed-cultivars of German chamomile differ significantly in their essential oil composition. In order to estimate the risk of genetic contamination resulting in quality losses, a population of 198 plants of the tetraploid /-/-alpha-bisabolol-type cultivar 'Manzana' was crossbred by open pollination with 2 plants of the bisabololoxide-containing cultivar 'BK-2'. The "bisabololoxide-content" is transmitted dominantly by the gene O/o. Five subsequent generations of this crossbreeding were analyzed and the results compared with expected values of the Hardy-Weinberg equilibrium for tetraploid organisms. The observed values showed a high correspondence with the theoretical ones in each generation, especially at calculation models presupposing 'BK-2' individuals with three to four dominant alleles and a potential crossing over during meiosis. According to the present results changes in quality of herbal starting materials are predictable and calculable.

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