1. Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), c/o Dr. Bohrgasse 7, 1030, Vienna, Austria
2. Department of Molecular Genetics, Laboratory for Macromolecular Analysis and Proteomics, Albert Einstein College of Medicine (AECOM), 1300 Morris Park Avenue, Bronx, NY 10461, USA.
3. Department of Biochemistry, Laboratory for Macromolecular Analysis and Proteomics, Albert Einstein College of Medicine (AECOM), 1300 Morris Park Avenue, Bronx, NY 10461, USA.
4. Germ Cell Conservation Laboratory, National Institute of Agrobiological Sciences, Kannondai, Tsukuba, Ibaraki 305-8602, Japan
5. National Livestock Breeding Center, Odakura, Nishigo, Fukushima 961-851, Japan