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. 2018 Mar 27;15:58. doi: 10.1186/s12985-018-0968-9

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© The Author(s). 2018

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. 2 — Phylogenetic relationships among cardioviruses based on the alignment of the nucleotide sequences of the P1, and P2 + P3 coding regions. a Phylogenetic analysis based on the P1 region. b Phylogenetic analysis based on the P2 and P3 regions. An unrooted tree was reconstructed using the neighbor-joining algorithm implemented in MEGA 6.0. Strain names and GenBank accession numbers of cardioviruses were shown. Scale bar indicated nucleotide substitution per site. Bootstrap valued (based on 1000 replicates) for each node are given