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1 April 2010 Osteological and Genetic Analysis of the Extinct Ezo Wolf (Canis Lupus Hattai) from Hokkaido Island, Japan
Naotaka Ishiguro, Yasuo Inoshima, Nobuo Shigehara, Hideo Ichikawa, Masaru Kato
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Abstract

The Ezo wolf (Canis lupus hattai Kishida, 1931) is an extinct subspecies that inhabited Hokkaido in Japan until the middle of the Meiji Period. Because there are very few preserved skeletons, no osteological and/or genetic analyses of the Ezo wolf have been conducted. In this study, 20 cranial and eight mandibular characters were measured on Ezo wolf skeletons, and mitochondrial DNA (mtDNA) was analyzed to assess genetic relationships between the Ezo wolf and other wolf lineages, including the Japanese wolf on Honshu. The morphological study showed that the Ezo wolf is larger than the Japanese wolf and similar in size to the grey wolf of the Asian and American Continents. MtDNA control sequences (751 bp) from two Ezo wolves were identical to those from the Canadian grey wolf. The morphological and genetic characters indicate that the ancestor of the Ezo wolf was genetically related to that of the grey wolf in Canada.

© 2010 Zoological Society of Japan
Naotaka Ishiguro, Yasuo Inoshima, Nobuo Shigehara, Hideo Ichikawa, and Masaru Kato "Osteological and Genetic Analysis of the Extinct Ezo Wolf (Canis Lupus Hattai) from Hokkaido Island, Japan," Zoological Science 27(4), 320-324, (1 April 2010). https://doi.org/10.2108/zsj.27.320
Received: 16 August 2009; Accepted: 15 November 2009; Published: 1 April 2010
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KEYWORDS
Canis lupus hattai
genetic variation
mitochondrial DNA
PHYLOGEOGRAPHY
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