Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (BR 2309/7-1)
Heisenberg fellowship (BR 2309/8-1)
Received: 27 July 2017
Accepted: 16 July 2018
First Online: 28 August 2018
Ethics approval and consent to participate
: Animal housing and care was all in accordance with European and local laws governing the care and use of laboratory animals (Council of Europe Treaty ETS-123). All experimental procedures were approved by and done under license from the Government of Upper Bavaria (Regierung von Oberbayern), licence number 55.2–1–54-2532-51-2013.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.