@article{KupperStigloherFeldhaaretal.2016,
  author    = {Kupper, Maria and Stigloher, Christian and Feldhaar, Heike and Gross, Roy},
  title     = {Distribution of the obligate endosymbiont Blochmannia floridanus and expression analysis of putative immune genes in ovaries of the carpenter ant Camponotus floridanus},
  series = {Arthropod Structure \& Development},
  volume    = {45},
  journal   = {Arthropod Structure \& Development},
  number    = {5},
  doi       = {10.1016/j.asd.2016.09.004},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-187482},
  pages     = {475-487},
  year      = {2016},
  abstract  = {The bacterial endosymbiont Blochmannia floridanus of the carpenter ant Camponotus floridanus contributes to its hosts' ontogeny via nutritional upgrading during metamorphosis. This primary endosymbiosis is essential for both partners and vertical transmission of the endosymbionts is guaranteed by bacterial infestation of oocytes. Here we present a detailed analysis of the presence and localisation of B. floridanus in the ants' ovaries obtained by FISH and TEM analyses. The most apical part of the germarium harbouring germ-line stem cells (GSCs) is not infected by the bacteria. The bacteria are detectable for the first time in lower parts of the germarium when cystocytes undergo the 4th and 5th division and B. floridanus infects somatic cells lying under the basal lamina surrounding the ovarioles. With the beginning of cystocyte differentiation, the endosymbionts are exclusively transported from follicle cells into the growing oocytes. This infestation of the oocytes by bacteria very likely involves exocytosis endocytosis processes between follicle cells and the oocytes. Nurse cells were never found to harbour the endosymbionts. Furthermore we present first gene expression data in C floridanus ovaries. These data indicate a modulation of immune gene expression which may facilitate tolerance towards the endosymbionts and thus may contribute to their transovarial transmission.},
  language  = {en}
}
@article{DrakulićFeldhaarLisičićetal.2016,
  author    = {Drakulić, Sanja and Feldhaar, Heike and Lisičić, Duje and Mioč, Mia and Cizelj, Ivan and Seiler, Michael and Spatz, Theresa and R{\"o}del, Mark-Oliver},
  title     = {Population-specific effects of developmental temperature on body condition and jumping performance of a widespread European frog},
  series = {Ecology and Evolution},
  volume    = {6},
  journal   = {Ecology and Evolution},
  number    = {10},
  doi       = {10.1002/ece3.2113},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-164960},
  pages     = {3115-3128},
  year      = {2016},
  abstract  = {All physiological processes of ectotherms depend on environmental temperature. Thus, adaptation of physiological mechanisms to the thermal environments is important for achieving optimal performance and fitness. The European Common Frog, Rana temporaria, is widely distributed across different thermal habitats. This makes it an exceptional model for studying the adaptations to different thermal conditions. We raised tadpoles from Germany and Croatia at two constant temperature treatments (15°C, 20°C), and under natural temperature fluctuations (in outdoor treatments), and tested how different developmental temperatures affected developmental traits, that is, length of larval development, morphometrics, and body condition, as well as jumping performance of metamorphs. Our results revealed population-specific differences in developmental time, body condition, and jumping performance. Croatian frogs developed faster in all treatments, were heavier, in better body condition, and had longer hind limbs and better jumping abilities than German metamorphs. The populations further differed in thermal sensitivity of jumping performance. While metamorphs from Croatia increased their jumping performance with higher temperatures, German metamorphs reached their performance maximum at lower temperatures. These population-specific differences in common environments indicate local genetic adaptation, with southern populations being better adapted to higher temperatures than those from north of the Alps.},
  language  = {en}
}