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PMID: 9223259 Published · ppublish English Journal Article Research Support, U.S. Gov't, Non-P.H.S.

Phylogenetics and the origin of species.

Avise JC, Wollenberg K

Abstract

A recent criticism that the biological species concept (BSC) unduly neglects phylogeny is examined under a novel modification of coalescent theory that considers multiple, sex-defined genealogical pathways through sexual organismal pedigrees. A competing phylogenetic species concept (PSC) also is evaluated from this vantage. Two analytical approaches are employed to capture the composite phylogenetic information contained within the braided assemblages of hereditary pathways of a pedigree: (i) consensus phylogenetic trees across allelic transmission routes and (ii) composite phenograms from quantitative values of organismal coancestry. Outcomes from both approaches demonstrate that the supposed sharp distinction between biological and phylogenetic species concepts is illusory. Historical descent and reproductive ties are related aspects of phylogeny and jointly illuminate biotic discontinuity.

MeSH Terms
Models, Genetic Phylogeny Species Specificity
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Avise J C
Department of Genetics, University of Georgia, Athens, GA 30602, USA.
Wollenberg K
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
Published
1997-07-22
Pages
7748-55
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC33696
Subset
IM
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