2nd annual MGSE Symposium - Institute for Evolution and ...

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Tobias Sikosek 1 34 Furthermore, bi-stable proteins may provide an additional advantage after gene duplication, because they provide excellent starting points for subfunctionalisation (functional divergence driven by adaptation and/or genotype space entropy), as consistent with the recently proposed Escape from Adaptive Conflict model. The potential for increased evolvability due to bi-stable proteins is thus two-fold by allowing adaptation before and after gene duplication.
Transcriptomic resilience to global warming in the seagrass Zostera marina, a marine foundation key species RNA-seq offers the opportunity to perform global transcription profiling of a key ecological species, predicting ecologically relevant responses under global warming. The seagrass Zostera marina, occurring along a thermal cline, provides the unique opportunity to assess temperature effects on gene expression as a function of their long term adaptation to local temperature regimes. Here, natural populations from cold and warm adapted seagrass populations (Denmark, Italy) of Zostera marina were exposed to a realistic heat wave scenario in a common stress garden setup, capturing a two-point thermal reaction norm. Transcriptomic responses were obtained by RNA-seq of eight cDNA libraries, each comprising ~125 000 reads. The expression profiles were assessed subsequent to transcriptome de novo assembly and gene identification via orthologous plant genes. Expression profiles revealed similar acute stress responses of both populations, with a focus on heat shock proteins. Population differences, however, became apparent at immediate heat recovery, characterized by a convergence to control expression of the warm adapted populations, while profiles of cold adapted genotypes diverged further from controls as well as acute heat responses. This divergent expression was characterized by a diverse set of gene functions dominated by protein degradation and RNA transcription regulation. Results implicate that ecological experiments addressing gene expression differences of locally adapted populations may be misleading when only acute stress responses are considered. Moreover, we propose transcriptomic resilience, analogous to ecological resilience, as an important measure to predict thetolerance of individuals and hence, the fate of local populations in the face of global warming. Susanne Franssen 1 1 Institute for Evolution and Biodiversity, Westfälische Wilhelms- University, Münster s.franssen@ uni-muenster.de 35
Page 1: 2 nd annual MGSE Symposium INTERDIS
Page 4 and 5: 4 Impressum 2 nd MGSE Symposium Abs
Page 7 and 8: programme 7
Page 9 and 10: 17:00 17:15 18:00 18:30 Short break
Page 13: Evolution is not only the change ac
Page 17 and 18: publIc lectures 17
Page 19 and 20: DecoDing the evolutionary recorD: W
Page 21: genome plasticity in ehec The bacte
Page 24 and 25: Prof. Dr. Joachim Kurtz 1 Prof. Dr.
Page 26 and 27: Alexander Christian 1 1 Institute f
Page 28 and 29: Felipe Torres 1 1 Institute for Mat
Page 30: Dr. Christoph Preuss Westfälische-
Page 33: Adaptive conflicts in protein evolu
Page 37 and 38: along these N gradients, we have fo
Page 40 and 41: Denise Meister 1 Harald Strauss 1 1
Page 42 and 43: Katharina Siedenberg 1 Harald Strau
Page 44: Gesellschaft für Arteriosklerosefo
Page 47 and 48: The effects of genotype and social
Page 49: Discovering the genetic background
Page 52 and 53: 52 the hIstory of the botanIcal gar
Page 54 and 55: 54 In 1913 he managed to make the g
Page 56 and 57: 56 A newly built pavilion is erecte
Page 58 and 59: 58 map & contact Botanischer Garten
Page 61 and 62: members of the mgse 61
Page 63 and 64: the mgse Junior Professor Francesco
Page 65: Schulze-Bahr, Prof. Eric Towards ev
Page 68 and 69: 68 addresses of Presenters Bohle, D
Page 71: notes 71

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