1. Department of Molecular Biology, Umeå University, SE-901 87 Umeå, Sweden
2. Bio-Computing Division, Fraunhofer Chile Research Foundation, Center for Systems Biotechnology, Santiago, Chile
3. Center for Bioinformatics and Genome Biology, Fundación Ciencia para la Vida, and Depto. de Ciencias Biologicas, Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago, Chile
4. School of Natural Sciences, Linnaeus University, SE-391 82 Kalmar, Sweden