About the Authors

Birgit Westernströer

Affiliation Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University Muenster, Muenster, Germany

Nicole Terwort

Affiliation Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University Muenster, Muenster, Germany

Jens Ehmcke

Affiliation Central Animal Facility of the Medical Faculty, University Muenster, Muenster, Germany

Joachim Wistuba

Affiliation Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University Muenster, Muenster, Germany

Stefan Schlatt

Stefan.Schlatt@ukmuenster.de

Affiliation Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University Muenster, Muenster, Germany

Nina Neuhaus

Affiliation Centre of Reproductive Medicine and Andrology, Institute of Reproductive and Regenerative Biology, University Muenster, Muenster, Germany

Competing Interests

Coauthor Stefan Schlatt is a PLOS ONE Editorial Board member. This does not alter the authors’ adherence to PLOS ONE editorial policies and criteria.

Author Contributions

Conceived and designed the experiments: BW NN SS JE JW. Performed the experiments: BW NT. Analyzed the data: BW NT NN JW JE SS. Contributed reagents/materials/analysis tools: BW SS. Wrote the paper: BW JE JW NN SS.