Genome-scale approach proves that the lungfish-coelacanth sister group is the closest living relative of tetrapods with the BEST program
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- University of Windsor, Computer Science, Biology
- University of Windsor, School of Computer Science
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- Document Type:
- Manuscript
- Date:
- Received 15 October 2009 04:03 UTC; Posted 15 October 2009
- Subjects:
- Ecology, Genetics & Genomics, Bioinformatics, Evolutionary Biology
- Abstract:
The origin of tetrapods has not been resolved for decades. Three principal hypotheses (lungfish-tetrapod, coelacanth-tetrapod, or lungfish-coelacanth sister group) have been proposed. We used the Bayesian method under the coalescence model with the latest program (BEST) to perform a phylogenetic analysis for seven relevant taxa and 43 nuclear genes encoding amino acid residues with the jackknife method for taxon sub-sampling. The results, combined with those of other three genome-scale approaches, successfully prove the hypothesis that lungfishes and coelacanths form a monophyletic sister group and are equally related to tetrapods supported by high Bayesian posterior probabilities of the branch (a lungfish-coelacanth clade) and high taxon jackknife supports.
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- This document is licensed to the public under the Creative Commons Attribution 3.0 License
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Shan, Yunfeng and Gras, Robin. Genome-scale approach proves that the lungfish-coelacanth sister group is the closest living relative of tetrapods with the BEST program. Available from Nature Precedings <http://hdl.handle.net/10101/npre.2009.3865.1> (2009)
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