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. 2016 Aug 9;7:1197. doi: 10.3389/fmicb.2016.01197

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Copyright © 2016 Naville and Volff.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Phylogenetic analysis of zebrafish ERVs and other fish retroelements. The phylogeny was reconstructed from an alignment of RT (201 amino acids, translated from element copies) by Maximum Likelihood using PhyML (Guindon et al., 2010) with optimized parameters (best of NNI and SPR; optimized invariable sites). Branch values represent supporting aLRT non-parametric statistics. Zebrafish and exogenous retrovirus sequences are highlighted in green and orange, respectively. Gypsy LTR retrotransposon sequences were used as an outgroup. The tree was drawn using FigTree (http://tree.bio.ed.ac.uk/software/figtree/).