Hennig's dilemma

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Phylogenetic trees constructed from an examination of two or more characters (e.g. two different genes) may result in two contradictory phylogenies. In such cases no single tree can be constructed using all characters compatibly. (Cladistics, in which the dilemma may arise, was founded by the German entomologist W. Hennig.)

Subjects: Ecology and Conservation — Earth Sciences and Geography.

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