started in Oct 2012 Coevolution in bacteria Friedrich-Schiller-Universität Jena, Biologisch Pharmazeutische Fakultät First Supervisor: Dr. C. Kost Co-Supervisor(s): Dr. M. Kaltenpoth, Prof. Dr. E. Kothe (Institute of Microbiology, FSU)
Master Thesis
2012 Metabolic costs of copy number, size and GC-content of plasmids as model endosymbionts Friedrich-Schiller-Universität Jena, Biologisch Pharmazeutische Fakultät First Supervisor: Dr. C. Kost Co-Supervisor(s): Dr. M. Kaltenpoth, Prof. Dr. G. Theißen (Lehrstuhl für Genetik, FSU)
Endosymbiosis plays an important role in the evolution of a large variety of organisms and the generation of biological diversity. The genome of endosymbionts is commonly characterized by a nucleotide bias composition towards AT as well as a reduction of gene content and genome size. Presumably, this ‘genome erosion’ leads to a reduction of costs for nucleotide biosynthesis and gene expression. However, the hypothesis lacks experimental evidence since the endosymbiont-host-relationship is obligate and difficult to disentangle. In my project, I am using plasmids and their bacterial hosts as a tractable model system to study the molecular basis of the observed genome features.