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. 2011 Oct 19;3:1340–1348. doi: 10.1093/gbe/evr105

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© The Author(s) 2011. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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FIG. 1.— — (A) Four major hypotheses for phylogenetic relationships involving Gnetales. (B) Optimal PhyML tree (GTR + G substitution model) reconstructed from all codon positions. The same topology is obtained using 1st + 2nd position sites. Bootstrap support for Gnecup hypothesis is 96% for all sites and 97% for 1st + 2nd position sites.