Phylogenomics Revives Traditional Views on Deep Animal Relationships

Philippe, H., Derelle, R., Lopez, P., Pick, K., Borchiellini, C., Boury-Esnault, N., Vacelet, J., Renard, E., Houliston, E., Queinnec, E., Da Silva, C., Wincker, P., Le Guyader, H., Leys, S., Jackson, D. J., Schreiber, F., Erpenbeck, D., Morgenstern, B., Worheide, G. and Manuel, M. (2009) Phylogenomics Revives Traditional Views on Deep Animal Relationships. Current Biology, 19 8: 706-712. doi:10.1016/j.cub.2009.02.052


Author Philippe, H.
Derelle, R.
Lopez, P.
Pick, K.
Borchiellini, C.
Boury-Esnault, N.
Vacelet, J.
Renard, E.
Houliston, E.
Queinnec, E.
Da Silva, C.
Wincker, P.
Le Guyader, H.
Leys, S.
Jackson, D. J.
Schreiber, F.
Erpenbeck, D.
Morgenstern, B.
Worheide, G.
Manuel, M.
Title Phylogenomics Revives Traditional Views on Deep Animal Relationships
Journal name Current Biology   Check publisher's open access policy
ISSN 0960-9822
Publication date 2009-04-28
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.cub.2009.02.052
Open Access Status DOI
Volume 19
Issue 8
Start page 706
End page 712
Total pages 7
Editor Geoffrey North
Place of publication United States
Publisher Cell Press
Language eng
Subject 0601 Biochemistry and Cell Biology
C1
970106 Expanding Knowledge in the Biological Sciences
060309 Phylogeny and Comparative Analysis
Abstract The origin of many of the defining features of animal body plans, such as symmetry, nervous system, and the mesoderm, remains shrouded in mystery because of major uncertainty regarding the emergence order of the early branching taxa: the sponge groups, ctenophores, placozoans,cnidarians, and bilaterians. The ‘‘phylogenomic’’ approach [1] has recently provided a robust picture for intrabilaterian relationships [2, 3] but not yet for more early branching metazoan clades. We have assembled a comprehensive 128 gene data set including newly generated sequence data from ctenophores, cnidarians, and all four main sponge groups. The resulting phylogeny yields two significant conclusions reviving old views that have been challenged in the molecular era: (1) that the sponges (Porifera) are monophyletic and not paraphyletic as repeatedly proposed [4–9], thus undermining the idea that ancestral metazoans had a sponge-like body plan; (2) that the most likely position for the ctenophores is together with the cnidarians in a ‘‘coelenterate’’ clade. The Porifera and the Placozoa branch basally with respect to a moderately supported ‘‘eumetazoan’’ clade containing the three taxa with nervous system and muscle cells (Cnidaria, Ctenophora, and Bilateria). This new phylogeny provides a stimulating framework for exploring the important changes that shaped the body plans of the early diverging phyla.
Keyword evolution
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Biological Sciences Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 451 times in Thomson Reuters Web of Science Article | Citations
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Created: Fri, 10 Jul 2009, 20:15:04 EST by Gail Walter on behalf of School of Biological Sciences