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. 2018 Mar 28;8:5323. doi: 10.1038/s41598-018-23634-6

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Comparison of the phylogenetical differences between samples. The generalized UniFrac PCoA plots grouped with the associated microalgae as the discriminating factor. The PCoA plots are based on (A) weighted UniFrac distance (d^W), (B) moderately-weighted UniFrac distance (d^VAW), and (C) unweighted UniFrac distance (d^U). d^0.5 and d⁰ indicate the generalized UniFrac distance of d^(α), where α controls the contribution of high-abundance branches ranging from 0 to 1. The perMANOVA p-value represents the statistical significance between microbial communities identified from A. tamarense and C. polykrikoides, regardless of the sequencing method.