Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 303068
Title Reduction of duplication in a Brassica oleracea germplasm collection
Author(s) Hintum, Th.J.L. van; Boukema, I.W.; Visser, D.L.
Source Genetic Resources and Crop Evolution 43 (1996)4. - ISSN 0925-9864 - p. 343 - 349.
Department(s) Centrum voor Plantenveredelings- en Reproduktieonderzoek
Publication type Refereed Article in a scientific journal
Publication year 1996
Abstract To reduce the number of accessions in the Brassica oleracea collection of the Centre for Genetic Resources The Netherlands (CGN) groups of accessions were bulked. Accessions in a group were selections from the same landrace or old variety, and were chosen, with the help of crop experts, on the basis of their history and morphology. Since this approach was received rather sceptically in the genebank community, a genetical analysis of some of the groups and their components (named varieties) was made to justify the procedures. A selection of white cabbage and Brussels sprouts, representing two crop types of B. oleracea, was made: eleven white cabbage groups comprising 43 components, and nine Brussels sprouts groups comprising 24 components. Each group and all of its components were described on the basis of electrophoresis of nine isoenzymes on 30 plants. Most components were rightly classified; 16 percent were misclassified. All these misclassifications were within similar groups. It could be concluded that pooling of the components included in this study was justified. In two cases the isozymic patterns suggested that the groups could even have been larger. Only in the case of the two groups of Brussels sprouts 'Bedfordshire' this was a real option. In the other case involving the white cabbage groups 'Langedijker Bewaar Gewoon', 'Langedijker Bewaar Graag' and 'Late Herfstdeen' this was not an option since these landraces, although having a common genetic background, clearly have a distinct identity as defined by morphology and history.
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