Japanese Wolves are Genetically Divided into Two Groups Based on an 8-Nucleotide Insertion/Deletion within the mtDNA Control Region Ishiguro, Naotaka and Inoshima, Yasuo and Yanai, Tokuma and Sasaki, Motoki and Matsui, Akira and Kikuchi, Hiroki and Maruyama, Masashi and Hongo, Hitomi and Vostretsov, Yuri E. and Gasilin, Viatcheslav and Kosintsev, Pavel A. and Quanjia, Chen and Chunxue, Wang, Zoological Science, 33, 44-49 (2016), DOI:http://dx.doi.org/10.2108/zs150110