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. 2015 Oct 6;4:46. doi: 10.1186/s13742-015-0086-1

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© Drummond et al. 2015

Open Access This 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 — The number of OTUs at the 97 % clustering threshold assigned to phyla. Unclassified OTUs and OTUs containing low-complexity sequences are not included, OTUs from phyla that are represented by less than 0.1 % of the OTUs are grouped into the ‘Others’ category