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Data from: Additional molecular support for the new chordate phylogeny

When using this data, please cite the original article:

Delsuc F, Tsagkogeorga G, Lartillot N, Philippe H (2008) Additional molecular support for the new chordate phylogeny. Genesis 46: 592-604. doi:10.1002/dvg.20450

Additionally, please cite the Dryad data package:

Delsuc F, Tsagkogeorga G, Lartillot N, Philippe H (2008) Data from: Additional molecular support for the new chordate phylogeny. Dryad Digital Repository. doi:10.5061/dryad.1850
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Dryad Package Identifier doi:10.5061/dryad.1850    282 views  
Abstract Recent phylogenomic analyses have suggested tunicates instead of cephalochordates as the closest living relatives of vertebrates. In direct contradiction with the long accepted view of Euchordates, this new phylogenetic hypothesis for chordate evolution has been the object of some skepticism. We assembled an expanded phylogenomic dataset focused on deuterostomes. Maximum-likelihood using standard models and Bayesian phylogenetic analyses using the CAT site-heterogeneous mixture model of amino-acid replacement both provided unequivocal support for the sister-group relationship between tunicates and vertebrates (Olfactores). Chordates were recovered as monophyletic with cephalochordates as the most basal lineage. These results were robust to both gene sampling and missing data. New analyses of ribosomal rRNA also recovered Olfactores when compositional bias was alleviated. Despite the inclusion of 25 taxa representing all major lineages, the monophyly of deuterostomes remained poorly supported. The implications of these phylogenetic results for interpreting chordate evolution are discussed in light of recent advances from evolutionary developmental biology and genomics.
Keywords phylogenomics, deuterostomes, chordates, tunicates, cephalochordates, olfactores, ribosomal RNA, jackknife, evolution,
Date Deposited 2010-08-10T13:17:46Z
Scientific Names Metazoa
Deuterostomia
Chordata
Tunicata
Urochordata
Cephalochordata
Hemichordata
Xenoturbella
Oikopleura
Ciona
Vertebrata
Craniata
Cyclostomata
Temporal Coverage Phanerozoic
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Delsuc2008-Genesis.nex    98 views   51 downloads View File Details
Download: Delsuc2008-Genesis.nex ( 2.874Mb )
To the extent possible under law, the authors have waived all copyright and related or neighboring rights to this data.  


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