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Reply to Halanych et al.: Ctenophore misplacement is corroborated by independent datasets

Pisani, Davide and Pett, Walker and Dohrmann, Martin and Feuda, Roberto and Rota-Stabelli, Omar and Philippe, Hervé and Lartillot, Nicolas and Wörheide, Gert (2016) Reply to Halanych et al.: Ctenophore misplacement is corroborated by independent datasets. Proceedings of the National Academy of Sciences of the United States of America, 113 (8). E948-E949. ISSN 0027-8424. PMCID PMC4776475. http://resolver.caltech.edu/CaltechAUTHORS:20160210-074425549

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Abstract

In their letter, Halanych et al. (1) criticize our recent assertion (2) that the phylogenetic placement of ctenophores as the sister group to all other animals (the Ctenophora-sister hypothesis) in three previous studies (3–5) was an artifact caused by undetected systematic error. Halanych et al. (1) claim we used no “objective approaches” to identify sources of systematic error. In fact, we used an objective comparison of Bayesian cross-validation scores to select the best-fitting substitution model, because poorly fitting models are a frequent source of systematic error. Halanych et al. point out that this comparison did not include partitioned site-homogeneous models. However, they do not mention that only one of the studies we address (3) used this approach, and that multiple site-homogeneous partitions still do not account for within-partition site-heterogeneous biochemical constraints, which our results show had a major impact on model fit and the tree topology.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1073/pnas.1525718113DOIArticle
http://www.pnas.org/content/113/8/E948PublisherArticle
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4776475/PubMed CentralArticle
Additional Information:© 2016 National Academy of Sciences. Published online before print February 9, 2016. Author contributions: D.P., W.P., M.D., R.F., O.R.-S., H.P., N.L., and G.W. wrote the paper. The authors declare no conflict of interest.
PubMed Central ID:PMC4776475
Record Number:CaltechAUTHORS:20160210-074425549
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160210-074425549
Official Citation:Reply to Halanych et al.: Ctenophore misplacement is corroborated by independent datasets PNAS 2016 113 (8) E948-E949; published ahead of print February 9, 2016, doi:10.1073/pnas.1525718113
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:64368
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:10 Feb 2016 17:57
Last Modified:19 Jul 2017 21:03

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