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Squared-Change Parsimony Reconstructions of Ancestral States for Continuous-Valued Characters on a Phylogenetic Tree

Maddison, W. P.·1991·Systematic Biology

Abstract

A direct algorithm is described to reconstruct on a phylogenetic tree the ancestral states of a continuous-valued character, using a parsimony criterion that minimizes the sum of squared changes along the branches. It is shown that when the squared changes are inversely weighted by the lengths of the branches, the squared-change parsimony reconstruction is that which has maximum posterior probability under a Brownian motion model of evolution. The squared-change parsimony estimates are also closely related to the contrasts in Felsenstein's test of character correlation. [Phylogeny; reconstructing ancestral states; character evolution; parsimony; Brownian motion models.]

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Crossref · 10.1093/sysbio/40.3.304

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Metadata

Authors
Maddison, W. P.
Venue
Systematic Biology
Published
1991-09-01
Volume
40
Issue
3
Pages
304-314
ISSN
  • 1063-5157 (ISSN-L)
  • 1076-836X
OpenAlex
W1980366464
Cited by
391
References
2
FWCI
6.95
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Squared-Change Parsimony Reconstructions of Ancestral States for Continuous-Valued Characters on a Phylogenetic Tree. https://app.cochat.ai/papers/10.1093/sysbio/40.3.304
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Maddison, W. P. (1991). Squared-Change Parsimony Reconstructions of Ancestral States for Continuous-Valued Characters on a Phylogenetic Tree. Systematic Biology. https://doi.org/10.1093/sysbio/40.3.304

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