Authors
Hervé Philippe, Romain Derelle, Philippe Lopez, Kerstin Pick, Carole Borchiellini, Nicole Boury-Esnault, Jean Vacelet, Emmanuelle Renard, Evelyn Houliston, Eric Quéinnec, Corinne Da Silva, Patrick Wincker, Hervé Le Guyader, Sally Leys, Daniel J Jackson, Fabian Schreiber, Dirk Erpenbeck, Burkhard Morgenstern, Gert Wörheide, Michaël Manuel
Publication date
2009/4/28
Journal
Current Biology
Volume
19
Issue
8
Pages
706-712
Publisher
Elsevier
Description
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 …
Total citations
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Scholar articles
H Philippe, R Derelle, P Lopez, K Pick, C Borchiellini… - Current Biology, 2009