1. Laboratoire de Biométrie et Biologie Évolutive (LBBE : UMR CNRS 5558), Université de Lyon 1, Villeurbanne, France.
2. Center for Bioinformatics, Saarland University, Saarbrücken, Germany.
3. Max Planck Institute for Informatics, Saarbrücken, Germany.
4. Department of Computer Science, University of Pisa, Italy.
5. Erable Team, INRIA.
6. Life Sciences, Centrum Wiskunde & Informatica (CWI), Amsterdam, The Netherlands.
7. VU University, Amsterdam, The Netherlands.