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. 2015 Dec 2;10:28. doi: 10.1186/s13015-015-0059-z

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© Cardona et al. 2015

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. 5 — The original tree (left), the tree obtained by means of the node rSPR operation $v \overset{n o d e}{⟵} w$ (middle), and the tree obtained by means of the arc rSPR operation $v \overset{a r c}{⟵} w$ (right)