Botanik Seminar
Ein gemeinsames Seminar des Lehrstuhls für Systematik, Biodiversität & Evolution der Pflanzen, der Botanischen Staatssammlung München und des Botanischen Gartens München-Nymphenburg
Wann? Mittwochs
- Mittwochs um 16:15 Uhr (während des Semesters)
Wo?
- Kleiner Hörsaal (Raum 109) im Botanischen Institut, Menzinger Str. 67, 80638 München.
Programm
10.04.2024: Prof. Dr. Susanne S. Renner, Washington University in St. Louis, U.S.A.
The genetic basis of a camouflage trait and the dynamics of plant/butterfly coevolution under climate change
Some plants use camouflage to avoid herbivores, but the evolution and function of this phenomenon have remained poorly studied. Our work clarifies the genetic causes and fitness benefits of stone-colored leaves in a Qinghai-Tibet-Plateau species of Corydalis that through its camouflage escapes herbivory from Parnassius caterpillars. Multi-omic data and functional validation show that a 254-bp-inserted transposon causes anthocyanin accumulation in leaves, giving them a grey color that reduces P. cephalus oviposition and leaf damage, resulting in higher fruit set than achieved by co-existing green-leaved individuals of the same species. Our study is novel in inferring population-genomic histories over the past 100 and 10,000 years of the interacting plants and butterflies at locations with and without camouflage. The results --to be presented in this talk-- illuminate the evolutionary dynamics of coevolving alpine plants and butterflies under climate warming.
Photo: Corydalis benecincta in Baima Snow Mountain © Christian Koerner, Basel
Host: Prof. Dr. Gudrun Kadereit
24 April 2024: Laura Ávila Robledillo, Max Planck Institute of Plant Breeding Research, Department of Chromosome Biology, Cologne, Germany.
Insights about mono- and holocentromeres in the genus Drosera
Host: PD Dr. Andreas Fleischmann
22.05.2024: Dr. Ekaterina Pushkareva, Botanical Institute, University of Cologne, Germany.
Biocrusts from the High Arctic: microbial community composition and their potential functions
Biological soil crusts (biocrusts) are essential components of polar ecosystems and play an important role in shaping the fragile environments of the Arctic and Antarctic regions. Biocrust are composed of a diverse array of bacteria, fungi, algae, lichens, and bryophytes that interact with the soil particles, creating a fragile layer on the soil's surface. They serve as pioneers in barren landscapes, contributing significantly to soil stability, nutrient cycling, and moisture retention. Understanding their composition, distribution, and ecological functions is crucial for comprehending the complex dynamics of polar ecosystems. Investigating these crusts offers insights into their resilience against extreme conditions and their pivotal role in maintaining the overall biodiversity and ecological balance in these harsh, yet vulnerable, polar environments.
Host: PD Dr. Andreas Beck
29.05.2024: Dr. Alistair Leverett, University of Cambridge, England.
Clusia: a (re)emerging model genus for studying crassulacean acid metabolism and succulent traits
Host: Dr. Thibaud Messerschmid
05.06.2024: Dr. Andrew Rozefelds, Principal Scientist and Curator of Palaeobotany at Queensland Museum, Australia.
The Cenozoic fossil record of northern Australia
Host: Dr. Elizabeth Joyce
12.06.2024: Dr. Petr Sklenář, Charles University in Prague, Czech Republic.
Plants from the tropical high Andes – evolution and ecology
The Tropical Andes, a hotspot of biodiversity, harbour several textbook examples of adaptive radiations in plants. Lupins, gentians, valerians, espeletias, what do they have in common? Why are they so diverse? The „summer every day, winter every night“ of the tropical high mountains provides unique environmental settings. But how can this be linked to plant diversification? The talk offers colorful plants, many questions, and maybe some answers.
Photo: Espeletia in Páramo Angel
Host: Dr. Simon Pfanzelt
26.06.2024: Eintauchen project, AG Gottschling.
... 17.07.2024
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