Molecular Phylogeny and New Haplotypes of Extinct Asian Black Bear Populations in Kyushu Island, Japan
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- ITOH Tetsuji
- Laboratory of Wildlife Management, Rakuno Gakuen University
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- SATO Yoshikazu
- Laboratory of Wildlife Ecology, Rakuno Gakuen University
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- ISHIGURO Naotaka
- The Graduate University for Advanced Studies, SOKENDAI
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- SHIMIZU Minoru
- Kumamoto City Museum
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- KURIHARA Nozomi
- National Museum of Nature and Science
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- MINAMI Masayo
- Institute for Space-Earth Environmental Research, Nagoya University
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- YAMAZAKI Koji
- Laboratory of Zoology, Ibaraki Nature Museum
Bibliographic Information
- Other Title
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- 絶滅した九州のツキノワグマ個体群の分子系統と新しいハプロタイプの発見
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Abstract
<p> Asian black bears (Ursus thibetanus) in Japan are clustered into 3 lineages (eastern, western, and southern clusters) based on mitochondrial DNA (mtDNA) haplotypes of an approximately 700 bp sequence in the D-loop region of mtDNA. In 2012 the Ministry of the Environment of Japan announced the Asian black bear population in Kyushu, the southwestern island of the Japanese archipelago, as locally extinct, because the last reliable record of the Asian black bear in Kyushu was in 1941. The number of samples and genetic analysis results pertaining to the Asian black bear population in Kyushu are very few. Therefore, the molecular phylogenetic characteristics of Asian black bears in Kyushu remain a missing link in understanding the trajectory of Asian black bear populations from the Asian mainland to Japan. In this study, we investigated the mtDNA haplotypes of Asian black bears in Kyushu using four old bone samples, which we found at various locations and dates. We succeeded in detecting two new haplotypes and a haplotype of the western cluster. The two new haplotypes also belonged to the western cluster. These results suggest a continuous distribution of Asian black bears between western Chugoku and Kyushu, and indicate that genetic variation occurred after habitat fragmentation. These results provide data to support the considerations of previous studies on the migration of Asian black bears from the Asian continent to the Japanese archipelago.</p>
Journal
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- Japanese Journal of Zoo and Wildlife Medicine
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Japanese Journal of Zoo and Wildlife Medicine 28 (1), 35-44, 2023-04-05
Japanese Society of Zoo and Wildlife Medicine
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Details 詳細情報について
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- CRID
- 1390859293124327296
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- NII Book ID
- AA11366156
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- ISSN
- 2185744X
- 13426133
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- NDL BIB ID
- 032807145
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
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- Abstract License Flag
- Disallowed