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. 2017 Jan 31;12:18. doi: 10.1186/s40793-017-0227-5

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© The Author(s). 2017

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 tree highlighting the position of S. thermophilus ACA-DC 2 relative to other Streptococcus species. The tree was constructed based on 16S rRNA gene sequences. GenBank accession numbers are presented in parentheses and type strains are indicated with a superscript T (type strains = ^T). Strains with complete genome sequence are marked with an asterisk. 16S rRNA gene sequences were aligned using MUSCLE [55]. The phylogenetic tree was built by the Maximum Likelihood method within MEGA7 software [56] using the Tamura-Nei substitution model [57]. Lactococcus lactis subsp. lactis NCDO 604^T served as the outgroup. Bootstrap values derived after 1,000 replicates. The scale bar indicates an estimated 0.01 nucleotide change per nucleotide position