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. 2008 Oct 2;36(19):6269–6283. doi: 10.1093/nar/gkn636

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© 2008 The Author(s)

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — From STNs to gene-network nodes (GNNs). Orthology projection of genes rooted in STN-I (A), STN-L (B) and STN-P(C). Roots of an ortholog: color nodes; presence of an ortholog: white nodes. The location of these three STNs in the species tree is indicated (D). In Supplementary Material Online we provide further examples of this orthology projection approach (Supplementary Figure S2) and compared with Inparanoid evolutionary scenarios as a different orthology data source (Supplementary Figures S3–S6).