1. Department of Hormonal Action Mechanisms Institute of Animal Reproduction and Food Research, Polish Academy of Sciences Olsztyn Poland
2. Cell and Tissue Analysis and Imaging Laboratory Institute of Animal Reproduction and Food Research, Polish Academy of Sciences Olsztyn Poland
3. Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology Jagiellonian University Kraków Poland
4. Małopolska Centre of Biotechnology Jagiellonian University Kraków Poland
5. Molecular Biology Laboratory Institute of Animal Reproduction and Food Research, Polish Academy of Sciences Olsztyn Poland