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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Vleesvervangers op maat. Samenwerkend naar de markt
Minor, M. ; Kardolus, J.P. ; Glas, M. van der; Hamoen, J.R. - \ 2014
Voedingsindustrie : vakblad 21 (2014)1. - ISSN 2213-5758 - p. 30 - 31.
The origin of Solanum juzepczukii
Berg, R.G. van den; Zevenbergen, M.J. ; Kardolus, J.P. ; Groendijk-Wilders, N. - \ 1999
In: Taxonomy of Cultivated Plants, Third International Symposium/ S. Andrews, A. Leslie and C. Alexander (eds.). Proceedings of the Meeting held in Edinburgh, Scotland, 20-26 July 1998. - Kew : Royal Botanic gardens, 1999 - p. 369 - 370.
The floral abscission zone in series Acaulia and related taxa of Solanum section Petota
Kardolus, J.P. ; Bezem, N. - \ 1999
Canadian Journal of Botany 76 (1999). - ISSN 0008-4026 - p. 1424 - 1432.
AFLP, a new molecular marker technique applied to potato taxonomy
Groendijk-Wilders, N. ; Kardolus, J.P. ; Zevenbergen, M.J. ; Berg, R.G. van den - \ 1999
In: Taxonomy of Cultivated Plants, Third International Symposium. Proceedings of the Meeting held in Edinburgh, Scotland, 20-26 July 1998 / Andrews, S., Leslie, A., Alexander, C., Kew : Royal Botanic Gardens - ISBN 9781900347891 - p. 363 - 365.
The potential of AFLPs in biosystematics: a first application in Solanum taxonomy (Solanaceae).
Kardolus, J.P. ; Eck, H.J. van; Berg, R.G. van den - \ 1998
Plant Systematics and Evolution 210 (1998). - ISSN 0378-2697 - p. 87 - 103.
Recent insights on the evolutionary relationships of wild and cultivated potato species (Solanum section Petota).
Kardolus, J.P. ; Berg, R.G. van den; Zevenbergen, M.J. ; Groendijk-Wilders, N. - \ 1998
In: 7th International Symposium: Plant evolution in man-made habitats, Amsterdam, The Netherlands - p. 84 - 84.
Disturbed habitats and the evolution of potato species (Solanum section Petota).
Kardolus, J.P. ; Berg, R.G. van den - \ 1998
In: 7th International Symposium: Plant evolution in man-made habitats, Amsterdam, The Netherlands - p. 20 - 20.
AFLP, a new molecular marker technique applied to potato taxonomy.
Groendijk-Wilders, N. ; Kardolus, J.P. ; Zevenbergen, M.J. ; Berg, R.G. van den - \ 1998
In: Third International Symposium on the Taxonomy of Cultivated Plants, Edinburgh, UK / Miller, D.M., - p. 48 - 48.
On the origin of Solanum Juzepczukii.
Berg, R.G. van den; Kardolus, J.P. ; Zevenbergen, M. ; Groendijk-Wilders, N. - \ 1998
In: Third International Symposium on the Taxonomy of Cultivated Plants, Edinburgh, UK. Miller, D.M. (ed.) (1998)
The inflorescence architecture of Solanum acaule and related taxa of Solanum section Petota (Solanaceae).
Kardolus, J.P. ; Groendijk-Wilders, N. - \ 1998
Acta botanica neerlandica 47 (1998). - ISSN 0044-5983 - p. 195 - 207.
Collapse of morphological species in the wild potato Solanum brevicaule complex.
Berg, R.G. van den; Miller, J.T. ; Ugarte, M.L. ; Kardolus, J.P. ; Villand, J. ; Nienhuis, J. ; Spooner, D.M. - \ 1998
American Journal of Botany 85 (1998). - ISSN 0002-9122 - p. 92 - 109.
A biosystematic analysis of Solanum acaule
Kardolus, J.P. - \ 1998
Agricultural University. Promotor(en): Jos van der Maesen; Ronald van den Berg. - S.l. : Kardolus - ISBN 9789054858294 - 110
solanaceae - plantkunde - taxonomie - classificatie - biologische naamgeving - solanum acaule - botany - taxonomy - classification - biological nomenclature
<p>This thesis describes a biosysternatic analysis of the allotetraploid species <em>Solanum acaule</em> . <em>Solanum acaule</em> is one of the circa 200 tuber-bearing Solanum species ( <em>Solanum</em> sect. <em>Petota</em> , Solanaceae) and often used in plant breeding programs for its disease resistances and frost tolerance. This species has the widest distribution of all wild potato species, from Ecuador into Argentina, and occurs at altitudes up to 4500 meter in the Andes. Together with the hexaplold <em>S. albicans</em> it forms the polyploid taxonomic series <em>Acaulia</em> . This study focuses on the hybrid speciation of series <em>Acaulia</em> . <em>Solanum acaule</em> shows morphological similarities with species of series <em>Megristacroloba</em> and <em>Tuberosa</em> , which have been hypothesized as possible ancestors. A phylogenetic study is conducted to unravel evolutionary relationships of <em>Solanum acaule</em> and its putative progenitors. Several morphological aspects of series <em>Acaulia</em> and related species are examined, and combined with a study of molecular markers. The thesis is completed with the proposal of a new subspecies of Solanum acaule.<p>In a multivariate morphological analysis the boundaries of series <em>Acaulia</em> are determined and variation within the series is reconsidered. Inflorescence architectural traits, such as the dimensions of pedicels and corollas, are discussed in relation to the taxonomy of Solanum sect. Petota species, their habitat and breeding behavior. An unrecorded inflorescence type, which can be characterized as a monochasium with a strongly reduced peduncle and one or two 'extra' flowers in the axil of the subtending leaf, is described in series Acaulia. The taxonomy of <em>Solanum</em> sect. <em>Petota</em> often depends on quantitative characters. These are often variable, causing difficulties in species classification. However, series <em>Acaulia</em> is characterized by a qualitative character, i.e. a modified or even completely absent pedicel articulation. Normally, unfertilized flowers separate at the floral abscission zone which is located at this articulation. In an anatomical study this zone is proven to be absent in non- articulated pedicels of Solanum acaule. In <em>S. albicans</em> this <em></em> zone is modified. These special features of pedicel articulation in series Acaulia are discussed in relation to the 'jointless'-mutations in tomato. The AFLP <sup>TM</SUP>molecular marker-technique is for the first time applied in <em>Solanum</em> taxonomy. Highly informative DNA fingerprints are produced with the AFLP-technique. Classifications based on AFLPs are generally in agreement with current taxonomic opinions, but also new evolutionary insights are revealed. The results of the present AFLP study casts doubt on the status of certain taxonomic series, and the classification of particular species into these series. Based on the neighbor-joining analysis of the AFLP data it is concluded that the hexaploid <em>Solanum demissum</em> (from Mexico) is likely to be closely related to both the South American series <em>Acaulia</em> and the Central American polyploid series <em>Longipedicellata,</em> and <em></em> feasibly a hybrid descendant of these series. Series <em>Acaulia</em> itself is a monophyletic group in the cladistic analyses, and it is most advanced in the cladograms. In addition to the AFLP study, an isozyme analysis has been conducted on series <em>Acaulia</em> and its closest relatives. Based on both AFLP and isozyme data, it is concluded that series Acaulia is indeed most closely related to series <em>Tuberosa</em> and <em>Megistacroloba.</em> However, <em></em> it is not a simple derivative of a hybridization event of species of these two series, but more probably one of its ancestors could have belonged to the series <em>Megistacroloba / T uberosa</em> affiliation. The second ancestor that provided the unique characters to series <em>Acaulia</em> is still unknown, and possibly extinct.
On the origin of the triploid cultivated potato Solanum juzepczukii.
Kardolus, J.P. ; Zevenbergen, M. ; Berg, R.G. van den - \ 1997
In: Hollingsworth P., Bateman R. and Gornall R. (Eds) Abstracts 'Advances in plant molecular systematics'. University of Glasgow (1997)
Morphological and molecular systematics of the wild potato Solanum brevicaule complex.
Miller, J.T. ; Berg, R.G. van den; Ugarte, M.L. ; Kardolus, J. ; Villand, J. ; Spooner, D.M. - \ 1996
American Journal of Botany 83 (1996). - ISSN 0002-9122 - p. 79 - 79.
The wild ancestors of cultivated potato: the brevicaule-complex.
Berg, R.G. van den; Groendijk-Wilders, N. ; Kardolus, J.P. - \ 1996
Acta botanica neerlandica 45 (1996). - ISSN 0044-5983 - p. 151 - 171.
Morphological variation within series Acaulia (Solanum section Petota)
Kardolus, J.P. - \ 1994
In: Solanaceae IV: Advances in Biology and Utilization, Royal Botanic Gardens, Kew. Proceedings of the fourth Solanaceae Congress, Adelaide, Australia, July 1994 / Nee, M., Symon, D.E., Lester, R.N., Jessop, J.P., - p. 257 - 274.
Morphological variation within series Acaulia (Solanum sect. Petota).
Kardolus, J.P. - \ 1994
Solanaceae Newsletter 4 (1994)1. - p. 23 - 24.
Isolation of the lily embryo sac.
Wagner, V.T. ; Kardolus, J.P. ; Went, J.L. van - \ 1989
Sexual Plant Reproduction 2 (1989). - ISSN 0934-0882 - p. 219 - 224.
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