Abstract
Switzerland has a rich pool of fruit genetic resources as it is located in the centre of Europe where it could benefit from the intensive exchange of goods within the continent. The rich heritage of traditional fruit varieties in Malus domestica, Pyrus communis, Prunus avium and Prunus domestica was analysed with molecular markers during the last 8 years. The total genetic diversity was investigated for the accessions conserved in the National Network of Swiss Fruit Genetic Resources Collections using microsatellite markers. The obtained data set was used to detect genetic similarities between individual accessions thereby identifying duplicates within the collections. Additionally, inferences about genetic structure, relationships between genetic diversity and original geographical sampling locations and correlations between phenotypic traits and genotype were performed. The results obtained will contribute the efficient and economically feasible conservation of fruit genetic resources within Switzerland.
Zusammenfassung
Die Schweiz besitzt einen reichen Pool an Obstgenressourcen und, da das Land inmitten von Europa liegt, konnte es vom intensiven Austausch an Gütern innerhalb Europas profitieren. Das reiche Erbe an Obstsorten von Malus domestica, Pyrus communis, Prunus avium und Prunus domestica wurde innerhalb der letzten 8 Jahre mittels molekularen Markern charakterisiert. Die gesamte genetische Diversität konnte für alle Akzessionen der Nationalen Erhaltungssammlungen mittels Mikrosatellitenmarkern erfasst werden. Der resultierende Datensatz wurde benutzt, um genetische Ähnlichkeiten zwischen individuellen Akzessionen zu erkennen und somit Duplikate zu identifizieren. Zusätzlich konnten Rückschlüsse über die genetische Struktur, den Zusammenhang zwischen genetischer Diversität und geographischer Herkunft und über die Korrelation von Phänotyp und Genotyp gemacht werden. Die Resultate dieses Projektes können zu einer effizienten und ökonomisch sinnvollen Erhaltung von Obstgenressourcen beitragen.
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Acknowledgements
This project was funded through the FOAG within the scope of the “National Action Plan for the conservation of Plant Genetic Resources for Food and Agriculture” and managed through the Swiss NGO Fructus. The authors would like to thank Sandra Noser and all institutions and private persons that delivered leaf samples. Additionally we would like to thank Beatrice Frey for assistance with lab work.
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Bühlmann, A., Gassmann, J., Ingenfeld, A. et al. Molecular Characterisation of the Swiss Fruit Genetic Resources. Erwerbs-Obstbau 57, 29–34 (2015). https://doi.org/10.1007/s10341-015-0230-1
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DOI: https://doi.org/10.1007/s10341-015-0230-1