Amino acid compositional heterogeneity shows strong correlation with PD but not with missing data, branch-length heterogeneity, or saturation in this data set. H. Delsuc Li A new paradigm for the Cambrian explosion? ML analysis of the complete data set and data sets based on the most stringent OGs in terms of missing data and RCFV recover Nemertea sister to Annelida. Moroz Lake. Evidence from an ultrastructural analysis of the dorsal pharynx in H. periglandulata and Enchytraeus minutus (Annelida, Clitellata). Fossils, molecules and embryos: New perspectives on the Cambrian explosion. 39 0 obj The methods used include maximum likelihood and Bayesian inference, the application of models with rate heterogeneity across sites, wide taxon sampling and compartmentalized analyses for each problematic clade. E. 2008, 269: 104-117. 5) recovered the same branching pattern among phyla as the analysis of the complete data set. 2010; Mallatt et al. F. Phylogenetic Analysis Using Parsimony (*and Other Methods), Version 4. HaMStR: Profile hidden Markov model based search for orthologs in ESTs. Struck TH, Halanych KM, Purschke G: Dinophilidae (Annelida) is most likely not a progenetic Eunicida: evidence from 18S and 28S rDNA. S70, available on Dryad) whereas only 4 (out of 76 potentially informative trees) recovered Serialia. B. Hausdorf 2013). (2011) did not sample Monoplacophora. All reduced datasets were then concatenated to a new, weighted dataset, in which each original character received a weight from 11 to zero. R.A. Brown e) Mollusca with Aculifera and Conchifera. (2011). Tiedemann Taxon sampling and details on data used are presented in Supplementary Table S1, available on Dryad at http://dx.doi.org/10.5061/dryad.30k4v, and details on specimen collection, tissues used, and RNA extraction for 32 newly sequenced taxa (including 11 molluscs, 4 brachiopods, 2 phoronids, 3 nemerteans, 6 annelids, 4 entoprocts, 1 cycliophoran, 1 chaetognath, and 1 priapulid) are presented in Supplementary Table S2, available on Dryad. Capitella, Crassostrea, and Lottia were represented by predicted transcripts from those genomes (Zhang et al. Phylogenomics and the reconstruction of the tree of life. 2014). 10.1002/jmor.10537. Hirose Despite running for nearly 6 months, most BI analyses failed to converge. Ott ; and National Science Foundation grants IOS-1457162 and 0744649 to L.L.M.]. The sister group to the annelids assemblage is a clade made up by Mollusca and Phoronida+Brachiopoda. endobj Cannon and Spionida s.str. We thank Patrick Krug, Richard Heard, Jamie Baldwin, Dan Speiser, the crew and scientists of the BioSkag II cruise aboard the R/V Håkon Mosby, the crew of the R/V Hans Brattström, University of Bergen and Institute of Marine Research, Norway, the crew and scientists of the Icy Inverts cruises aboard the R/V Lawrence M. Gould and Nathaniel B. Palmer, Friday Harbor Labs, and Heron Island Research Station for supporting specimen collection.

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