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. 2016 May 10;16:98. doi: 10.1186/s12862-016-0675-3

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© Ho and Smith. 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 — Patterns of variation in the dN/dS ratio (ω) across genes and between pigmented and unpigmented lineages. The upper panel shows ω values for the single ratio model for each of the three loci (see also Additional file 4: Table S3). * represents a locus with a significantly lower ω value than the other two loci. The lower panel shows ω values for pigmented (dark gray dot) and unpigmented (white dot) lineages under the two-ratio model. * represents cases in which the unpigmented lineages have significantly higher ω values