The Causes of Character Incompatibility
A character state tree can be construed as an hypothesis about evolutionary relationships, and as such it can be true or false. First I will make clear what assertions are hypothesized by a character state tree. These are the ways in which character state trees can be false. Then I will review how to determine whether two character state trees are logically compatible, and in cases when they are not, how to tell what assertions hypothesized by them are in contradiction. Finally, I will discuss how information revealed in the tests for compatibility of two character state trees can suggest ways to revise character state trees for subsequent re-evaluation.
KeywordsCharacter State Phylogenetic Reconstruction Extant Species Perennial Shrub Fruit Wing
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