Maintenance in genebanks, a case study: contaminations observed in the Nu¨rnberg oats of 1831 |
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| Authors: | Adolf Martin Steiner Peter Ruckenbauer Elke Goecke |
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| Institution: | (1) Institut fu¨r Pflanzenzu¨chtung, Saatgutforschung und Populationsgenetik, Universita¨t Hohenheim, D-70593 Stuttgart, Germany;(2) Institut fu¨r Pflanzenbau und Pflanzenzu¨chtung, Universita¨t fu¨r Bodenkultur Wien, Gregor-Mendelstrasse 33, A-1180 Wien, Austria |
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| Abstract: | The genetic identity and purity of the Nu¨rnberg oats of 1831 stored at Freising, Braunschweig and Linz were studied by storage-protein electrophoresis. The seven oat lines showed two electrophoretic phenotypes with frequencies of five and two. All conceivable levels of contamination of the lines were found ranging from identity over contamination by the respective other Nu¨rnberg phenotype and/or foreign phenotypes up to the replacement of a line by a foreign phenotype. In addition, at one of the storage sites the identification numbers are different. The case study shows vividly that genotype maintenance in genebanks demands the utmost care. |
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| Keywords: | genotype maintenance genetic resources landraces oat Avena sativaL |
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