A reexamination of infraspecific taxa of a wild potato,Solanum microdontum (Solanum sect.Petota:Solanaceae) |
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Authors: | Ronald G van den Berg David M Spooner |
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Institution: | (1) Department of Plant Taxonomy, Agricultural University Wageningen, P.O. Box 8010, 6700 ED Wageningen, The Netherlands;(2) Vegetable Crops Research Unit, Agricultural Research Service, USDA, Department of Horticulture, University of Wisconsin, 1575 Linden Drive, 53706 Wisconsin, USA |
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Abstract: | Current taxonomic interpretations ofSolanum microdontum
Bitter partition the species into two or three infraspecific taxa, variously recognized as subspecies or varieties. The present study reexamines these taxa using morphological data from four individuals each of 69 accessions from most of the range of the species, planted in a common field plot. Our results show that the character states used to recognize infraspecific taxa inS. microdontum often vary within accessions and have no correlation with geography. We conclude that past hypotheses have used typological concepts and that infraspecific taxa are not warranted. This study questions other hypotheses of infraspecific taxa in sect.Petota. |
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Keywords: | Solanaceae Solanum sect Petota Solanum microdontum Potatoes subspecies systematics varieties |
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