Journal
SYSTEMATIC BIOLOGY
Volume 52, Issue 5, Pages 641-648Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10635150390235467
Keywords
birth-death process; Felsenstein zone; inconsistency; parsimony
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Although the conditions under which the parsimony method becomes inconsistent have been studied for almost two decades, the probability that the parsimony method would encounter conditions causing inconsistency under simple models of cladogenesis is unknown. Here, we examine the statistical behavior of the parsimony method under a birth-death model of cladogenesis, when the molecular clock holds. The parsimony method can become inconsistent a high proportion of the time even under this simple model of cladogenesis. When taxon sampling is poor or rates of evolution are high, the probability that parsimony will become inconsistent increases.
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