Genetic diversity of the MHC DQB gene in black bear populations of western parts of Japan

• Project/Area Number: 23310170
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Resource conservation science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: ISHIBASHI Yasuyuki 独立行政法人森林総合研究所, 関西支所, チーム長 (80353580)
• Co-Investigator(Kenkyū-buntansha): OI Toru 森林総合研究所, 野生動物研究領域, 領域長 (10201964)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000); Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 保全生物 / 遺伝的多様性 / 孤立個体群 / MHC / ツキノワグマ / 遺伝的交流

Research Abstract

We compared genetic diversity of the second exon (270 bp) of the MHC DQB gene among six black bear populations in western part of Japan. Western-Chugoku population, which is isolated from others, had only three alleles (i.e. sequences) and showed the lowest heterozygosity because of the frequency distribution considerably biased to one of the alleles. Comparison with a precedent study implied that allele numbers decreased quickly in the examined populations, because those populations declined considerably at the end of the last century.

Research Products

• [Journal Article] ツキノワグマ孤立個体群の保全にむけて-遺伝的多様性を把握する- (2012)
  • Author(s): 石橋靖幸
  • Journal Title: 森林総合研究所関西支所研究情報 Volume: 104 Pages: 3-3
• [Journal Article] ツキノワグマ孤立個体群の保全に向けて―遺伝的多様性を把握する― (2012)
  • Author(s): 石橋 靖幸
  • Journal Title: 森林総合研究所関西支所 研究情報 Volume: 104 Pages: 3-3
• [Presentation] Expansion of distribution and spacio-temporal change of density of black bears (Ursus thibetanus) (2013)
  • Author(s): Oi T., Tado H., Fujii T., Sawada S., Kanamori H
  • Organizer: Asian Society of Zoo and Wildlife Medicine Combined Conference 2013
  • Place of Presentation: Institute of Technical Education College West(シンガポール)
  • Year and Date: 2013-10-26
• [Presentation] Geographical population structure of the expanding Asiatic black bear population in Japan (2013)
  • Author(s): Oi T., Tado H., Fujii T., Sawada S., Kanamori H.
  • Organizer: 22nd International Conference on Bear Research and Management
  • Place of Presentation: Brigham Young University(アメリカ)
  • Year and Date: 2013-09-18
• [Presentation] 西中国山地「絶滅の恐れのあるクマ」のゆくえ (2012)
  • Author(s): 大井徹
  • Organizer: 日本クマネットワークシンポジウム
  • Place of Presentation: 広島市まちづくり市民交流プラザ(広島)
  • Year and Date: 2012-02-26
  • Invited
• [Presentation] 西中国山地『絶滅の恐れのあるクマ』のゆくえ (2012)
  • Author(s): 大井徹
  • Organizer: 日本クマネットワークシンポジウム:中国山地におけるツキノワグマの分布拡大の可能性と今後の保全にむけて
  • Place of Presentation: 広島市まちづくり市民交流プラザ(広島県)(招待講演)
  • Year and Date: 2012-02-26
• [Presentation] 中国山地ツキノワグマ個体群におけるMHC クラスIIベータ遺伝子の多様性 (2012)
  • Author(s): 石橋靖幸, 大井徹, 澤田誠吾, 西信介
  • Organizer: 日本哺乳類学会2012年度大会
  • Place of Presentation: 麻布大(神奈川)
• [Presentation] 中国山地ツキノワグマ個体群におけるＭＨＣクラスIIベータ遺伝子の多様性 (2012)
  • Author(s): 石橋 靖幸、大井 徹、澤田 誠吾、西 信介
  • Organizer: 日本哺乳類学会2012年度大会
  • Place of Presentation: 麻布大（神奈川県相模原市）
• [Presentation] Expansion of distribution and spacio-temporal change of density of black bears (Ursus thibetanus).
  • Author(s): Oi T., Tado H., Fujii T., Sawada S., Kanamori H.
  • Organizer: Asian Society of Zoo and Wildlife Medicine Combined Conference 2013
  • Place of Presentation: Institute of Technical Education College West（シンガポール）
• [Presentation] Geographical population structure of the expanding Asiatic black bear population in Japan.
  • Author(s): Oi T., Tado H., Fujii T., Sawada S., Kanamori H.
  • Organizer: 22nd International Conference on Bear Research and Management
  • Place of Presentation: Brigham Young University（アメリカ）