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. 2018 Apr 10;18:50. doi: 10.1186/s12862-018-1168-3

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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. 1 — Sampling sites and extant distribution of E. melanogaster, with the major geographical features within the distributed area labelled. Great rivers in this area are indicated by Roman numerals: I, Jinsha River; II, Lancang River; III, Nu River; IV, Dulong River; V, Yangtze River; and VI, Pearl River. The locality codes and coordinates are presented in Additional file 1: Table S1. The elevation is shown with a legend in the bottom left. The colours of the sampling sites indicate mitochondrial clades and correspond to the colours in the phylogenetic tree shown in Fig. 2 (shown here in the top-right frame). The altitude information is freely available at http://www.worldclim.org/, and the base map from Esri Content Packages