Reconstructing ancestral character states: a critical reappraisal.

Published

Journal Article

Using parsimony to reconstruct ancestral character states on a phylogenetic tree has become a popular method for testing ecological and evolutionary hypotheses. Despite its popularity, the assumptions and uncertainties of reconstructing the ancestral states of a single character have received less attention than the much less challenging endeavor of reconstructing phylogenetic trees from many characters. Recent research suggests that parsimony reconstructions are often sensitive to violations of the almost universal assumption of equal probabilities of gains and losses. In addition, maximum likelihood has been developed as an alternative to parsimony reconstruction, and has also revealed a surprising amount of uncertainty in ancestral reconstructions.

Full Text

Duke Authors

Cited Authors

  • Cunningham, CW; Omland, KE; Oakley, TH

Published Date

  • September 1998

Published In

Volume / Issue

  • 13 / 9

Start / End Page

  • 361 - 366

PubMed ID

  • 21238344

Pubmed Central ID

  • 21238344

Electronic International Standard Serial Number (EISSN)

  • 1872-8383

International Standard Serial Number (ISSN)

  • 0169-5347

Digital Object Identifier (DOI)

  • 10.1016/s0169-5347(98)01382-2

Language

  • eng