1. Animal Genome Research Unit, Agrogenomics Research Center, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan
2. Office of Evaluation, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
3. United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
4. Animal Research DIvision, Institute of Japan Association for Techno-innovation in Agriculture, Forestry and Fisheries, Tsukuba, Ibaraki, Japan
5. Daisuke Toki, National Livestock Breeding Center, Nishigo, Fukushima, Japan
6. Division of Basic Medical Science and Molecular Medicine, Department of Molecular Life Science, Tokai University School of Medicine, Isehara, Kanagawa, Japan
7. Animal Bioregulation Unit, Division of Animal Sciences, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan