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Journal Article

Phylogenetic Patterns and Hybridization

V. A. Funk
Annals of the Missouri Botanical Garden
Vol. 72, No. 4 (1985), pp. 681-715
DOI: 10.2307/2399220
Stable URL: http://www.jstor.org/stable/2399220
Page Count: 35
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Phylogenetic Patterns and Hybridization
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Abstract

Hybridization is an important part of the evolutionary history of flowering plants. If hybridization has occurred among the species of a taxon under cladistic analysis the results are varied but always present additional difficulties. Hybridization results in incongruent intersecting data that obscure the underlying hierarchy. Guidelines and methods are examined for their usefulness in identifying possible hybrids in a cladistic study. Seven genera are analyzed cladistically and the resulting cladograms examined for possible hybrids. These hypotheses of hybridization are then compared to other data, such as distribution and cytology, to see if the hypotheses of hybridization are supported or rejected. The more hybrids an analysis contains and the more complex the interactions, the more difficult it becomes to identify possible hybrids and their parents.

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