RE‐EXAMINATION OF A NUMERICAL TAXONOMIC STUDY OF SOLANUM SPECIES AND HYBRIDS
- 1 August 1976
- Vol. 25 (4) , 451-462
- https://doi.org/10.2307/1220527
Abstract
Summary: Data of Heiser et al. (1965) on species, hybrids, autoploids, and alloploids in Solanum were re‐examined using additional methods of numerical analysis. The phenogram produced after the removal of hybrids from the data matrix indicated that distortion of taxa observed in the phenogram of the previous study was due to the influence of hybrids. Hybrids, with one exception, were found to fall in an intermediate position relative to their parents in the graph obtained from principal components analysis. The ability to display intermediate groups makes principal components analysis better suited than cluster analysis for revealing hybrids from phenetic data.Funding Information
- National Science Foundation
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