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. 2015 Aug 27;8:380. doi: 10.1186/s13104-015-1371-x

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© Engsontia et al. 2015

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 — Estimation of gene gain and loss events and number of Or genes in ancestral species. Number of gene gains and losses are shown on tree branches and indicated with+ and −, respectively (blue BadiRate, red NOTUNG). Numbers in square boxes indicate number of Or genes in ancestral and extant species. The phylogeny of 7 ants and a honey bee (Ap. mellifera) with approximate divergence times (in million years: MY) is inferred from references [2, 62, 63]