Project groups

8-2.4 | DISTRIBUTION OF GENETIC DIVERSITY IN LICHEN-FORMING FUNGI AND THEIR GREEN ALGAL SYMBIONTS ALONG CLIMATIC GRADIENTS

Understanding the range-wide distribution of genetic diversity in symbiotic organisms is important, because little is known about the response of symbiotic systems to environmental change, such as anthropogenic climate change. Most naturally occurring organisms, however, form some kind of symbiosis or close association with other organisms. Here we study the distribution of genetic diversity in the lichen-forming fungus Lasallia pustulata and its green algal symbionts of the genus Trebouxia. We specifically analyze genetic diversity and climatic parameters along latitudinal gradients from the Mediterranean to Scandinavia, and along altitudinal gradients from 0-2000 meters, covering the fungus’ entire distribution range. This study sheds light on symbiont diversity and symbiont switching along climatic gradients.

Team

Prof. Dr. Imke Schmitt, Researcher
Anna Sadowska-Des , Ph.D. student

Publications

Sadowska-Des, A.D., Dal Grande, F., Lumbsch, H.T., Beck, A., Otte, J., Hur, J.S., Kim, J.A. & I. Schmitt (2014) : Integrating coalescent and phylogenetic approaches to delimit species in the lichen photobiont Trebouxia. - Molecular Phylogenetics and Evolution 76: 202-210.

Sadowska-Des, A.D. & K. Szczepanska (2012) : Nowe stanowiska porostu Lasallia pustulata w Sudetach. - Przyroda Sudetow 15: 45-52.

Schmitt, I., Otte, J., Parnmen, S., Sadowska-Des, A.D., Lücking, R. & H.T. Lumbsch (2012) :  A new circumscription of the genus Varicellaria (Pertusariales, Ascomycota). - MycoKeys 4: 23–36.

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