Acknowledgments
This study was funded by the Icelandic Research Fund IRF (Grant # 141102-051 and # 174307-051). SW was funded by a Marie Curie IEF scholarship (‘Lichenomics’) under the FP7 Framework Program of the European Commission. The lab of Silke Werth was supported by Startup funding from LMU Munich. Export permits for biological material were obtained from the Icelandic Institute of Natural History (permit # 2015090014/43-0 and # 2017010019/43-0). We thank the Biomedical Sequencing Facility in Vienna for sequencing the HiSeq libraries.