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. 2017 Jun 5;18:292. doi: 10.1186/s12859-017-1701-1

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© The Author(s) 2017

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. 4 — Reconciliation feasibility. a The sampled species, loci, and individuals. We assume knowledge of the species-specific locus from which each gene is sampled. b For a gene tree (black), the PLCT uses alleles to label branches along which no duplications are allowed (colored lines). c The LEG contains one node per species-specific locus and encodes overlapping labels in the PLCT as edges in the LEG. d A gene tree has a feasible reconciliation if and only if every connected component of the LEG contains no more than one locus from each species