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. 2016 Mar 22;17:254. doi: 10.1186/s12864-016-2572-y

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© van Schooten et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — IR phylogeny in Heliconius. A phylogenetic relationship of the IRs across 11 Heliconius species is presented. Weak (50–79 %) and strong (80 %) bootstrap values are shown with solid and empty black dots respectively, but only for major branches. Support for branches of homologues of the 11 species that group into one gene are left out. When a gene is present in one copy for all 11 species, full gene names were left out. While the majority of the IRs are conserved between the 11 species analyzed we observed Heliconius-specific expansions at IR60a1, IR60a2, and the divergent IR75q1 gene. Colors of each branch represent the number of exons in each specific IR gene