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. 2019 Oct 16;286(1913):20191948. doi: 10.1098/rspb.2019.1948

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — Phylogenetic trees of coding and regulatory regions show sociality is only associated with regulatory variation. Text colour indicates ecological niche, point colour indicates geographical origin and point size indicates the sum of the mat and biofilm-colony score. (a) Maximum-likelihood consensus tree of the alignment of the concatenated A and C domains. Black star indicates the 15-amino-acid insertion. (b) Maximum-likelihood consensus tree of the alignment of the upstream regulatory region; bars and letters indicate regulatory alleles at the site of balancing selection. (Online version in colour.)