1. Zoological Institute and Museum, University of Greifswald , 17489 Greifswald , Germany
2. Institute of Animal Cell and Systems Biology, University of Hamburg , 20146 Hamburg , Germany
3. Department of Genetics and Microbiology, Charles University , Viničná 5, 128 44 Prague 2 , Czech Republic
4. Center for Functional Genomics of Microbes, University of Greifswald , 17489 Greifswald , Germany
5. Interfaculty Institute for Genetics and Functional Genomics, University of Greifswald , 17489 Greifswald , Germany
6. Department of Botany and Zoology, Masaryk University , 611 37 Brno , Czech Republic