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2021 Fiscal Year Annual Research Report

ゲノム・細胞情報に基づく国内希少動物の繁殖促進戦略

Research Project

Project/Area Number 20H00420
Research InstitutionKyoto University

Principal Investigator

村山 美穂  京都大学, 野生動物研究センター, 教授 (60293552)

Co-Investigator(Kenkyū-buntansha) 亀井 謙一郎  京都大学, 高等研究院, 研究員 (00588262)
金子 武人  岩手大学, 理工学部, 准教授 (30332878)
福田 智一  岩手大学, 理工学部, 教授 (40321640)
大沼 学  国立研究開発法人国立環境研究所, 生物多様性領域, 主幹研究員 (50442695)
木下 こづえ  京都大学, 野生動物研究センター, 助教 (50724233)
Project Period (FY) 2020-04-01 – 2023-03-31
Keywords絶滅危惧種 / ゲノム / iPS細胞 / 生殖細胞 / 加齢
Outline of Annual Research Achievements

本研究では、国内の希少高次捕食者のツシマヤマネコ、ニホンイヌワシにおいて、繁殖の成否に関わる要因を司る分子基盤を、ゲノム、細胞、生殖機能など多階層縦断的な解析によって明らかにする。具体的には1)繁殖機能に関わる遺伝子の同定、2)iPS細胞および始原生殖細胞の作製法の確立、3)加齢やストレスによる繁殖機能低下の原因解明、を相互補完的に実施し、得られる情報に基づいて、飼育施設に有効な繁殖促進戦略を提案する。
1)では、整備したイヌワシのゲノム情報を基に、繁殖に関連する42遺伝子の配列を同定した。繁殖成績との比較から、MAN2C1、PDIA3、ZP2遺伝子が繁殖成績と関連する可能性が示唆された。ツシマヤマネコでも繁殖に関連する遺伝子の解析を進めた。
2)では、昨年度に引き続き、ニホンイヌワシiPS細胞の培養条件の検討を行い、ヒト多能性幹細胞用の未分化維持用合成培養液が使用できることを確認した。始原生殖細胞分化への条件検討も試みた。作成したiPS細胞の機能評価のため、長期培養後における増殖能・分化能・核型解析を行った。ケナガネズミの初代培養細胞へ変異型CDK4, サイクリンD1, テロメア逆転写酵素(TERT)を導入することで無限に分裂細胞の作製に成功した。ケナガネズミでは、従来汎用されているウィルス由来の癌遺伝子SV40を用いた方法と比較して、染色体不安定性が発生せず、さらに二倍体を保持したまま無限分裂するという特徴を明らかにした。
3)では、引き続き年齢推定の精度の向上を目指した。前年度と同様に糞を用いてストレスのバイオマーカーのコルチゾール濃度変化を調べると共に、簡易および迅速アッセイ法の開発に取り組んだ。生殖細胞では、ツシマヤマネコの死亡個体から摘出した精巣組織から精子を回収してフリーズドライ保存を実施した。フリーズドライ精子でも核形成可能な受精能を確認した。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

ほぼ予定通りに進行し、論文出版や学会発表も多数行った。

Strategy for Future Research Activity

1)では、野生個体や飼育個体の多数の試料を収集し、飼育下の繁殖に有利に働く機能遺伝子について多様性の解析を行う。ほぼ全ての飼育個体について、繁殖成功に関連するSNPマーカーを解析し、情報を新規導入個体の個性に合わせた飼育管理や適切なペア形成に活用するべく、効率的な飼育下繁殖計画の立案を行う。
2)では、始原生殖細胞への分化誘導法を検討し、更に実施項目3で得られる生殖細胞の情報も参考にする。また、実施項目1で同定された機能遺伝子について、iPS細胞由来の分化誘導細胞を用いて、機能解析や表現型解析を行い、作用機構を明らかにする。
3)では、モデル動物で開発した技術を、野生由来の飼育個体へ応用する。年齢推定された健常個体あるいは加齢やストレスにより繁殖機能が低下したヤマネコおよびイヌワシから生殖細胞の採取を試み、年齢やホルモン濃度と生殖細胞機能変化との関連性を明らかにする。さらには、モデル動物で開発した生殖細胞の保存法をこれらの野生個体に応用し、自然繁殖の困難な希少動物でも将来的に産仔作出可能な生殖補助技術を確立する。

  • Research Products

    (50 results)

All 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (12 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 11 results,  Open Access: 7 results) Presentation (34 results) (of which Int'l Joint Research: 25 results) Book (1 results) Remarks (2 results)

  • [Int'l Joint Research] University of Edinburgh(英国)

    • Country Name
      UNITED KINGDOM
    • Counterpart Institution
      University of Edinburgh
  • [Journal Article] Treatment with MG132 prevents spontaneous activation of rat oocyte in culture and promotes embryonic development after intracytoplasmic sperm injection2022

    • Author(s)
      Nakagawa Yuki、Kaneko Takehito
    • Journal Title

      Scientific Reports

      Volume: 12 Pages: 2706

    • DOI

      10.1038/s41598-022-06714-6

    • Peer Reviewed / Open Access
  • [Journal Article] フリーズドライ精子保存法2022

    • Author(s)
      金子武人
    • Journal Title

      LABIO21

      Volume: 85 Pages: 21-24

  • [Journal Article] Assessment of genetic diversity among Egyptian and Saudi chicken ecotypes and local Egyptian chicken breeds using microsatellite markers2021

    • Author(s)
      Sabry A. Ramadan S. Hassan M.M. Mohamed A.A. Inoue-Murayama M.
    • Journal Title

      Journal of Environmental Biology

      Volume: 42 Pages: 33-39

    • DOI

      10.22438/jeb/42/1/MRN-1572

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Genetic diversity and population structure in the Ryukyu flying fox inferred from remote sampling in the Yaeyama archipelago2021

    • Author(s)
      Taki Yuto、Vincenot Christian E.、Sato Yu、Inoue-Murayama Miho
    • Journal Title

      PLOS ONE

      Volume: 16 Pages: e0248672

    • DOI

      10.1371/journal.pone.0248672

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 日本近海に来遊するハンドウイルカ属の種判別2021

    • Author(s)
      北 夕紀、佐々木 萌美、立川 利幸、柳澤 牧央、寺沢 文男、小木 万布、酒井 麻衣、村山 美穂、森阪 匡通、神田 育子、吉岡 基
    • Journal Title

      DNA多型

      Volume: 29 Pages: 5-11

    • Peer Reviewed
  • [Journal Article] Microsatellite records for?volume 13, issue 42021

    • Author(s)
      Chantra Rachawadee、Dai Yufei、Inoue-Murayama Miho、Kittiwattanawong Kongkiat、Lim Qi Luan、Rovie-Ryan Jeffrine J.、Sakornwimon Watchara、Wang Xianyan、Zhao Liyuan
    • Journal Title

      Conservation Genetics Resources

      Volume: 13 Pages: 465-471

    • DOI

      10.1007/s12686-021-01243-2

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Genetic diversity of the endangered Japanese golden eagle at neutral and functional loci2021

    • Author(s)
      Naito‐Liederbach Annegret M.、Sato Yu、Nakajima Nobuyoshi、Maeda Taku、Inoue Takehiko、Yamazaki Toru、Ogden Rob、Inoue‐Murayama Miho
    • Journal Title

      Ecological Research

      Volume: 36 Pages: 815-829

    • DOI

      10.1111/1440-1703.12246

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Personality, subjective well-being, and the serotonin 1a receptor gene in common marmosets (Callithrix jacchus)2021

    • Author(s)
      Weiss Alexander、Yokoyama Chihiro、Hayashi Takuya、Inoue-Murayama Miho
    • Journal Title

      PLOS ONE

      Volume: 16 Pages: e0238663

    • DOI

      10.1371/journal.pone.0238663

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Age estimation using methylation-sensitive high-resolution melting (MS-HRM) in both healthy felines and those with chronic kidney disease2021

    • Author(s)
      Qi Huiyuan、Kinoshita Kodzue、Mori Takashi、Matsumoto Kaori、Matsui Yukiko、Inoue-Murayama Miho
    • Journal Title

      Scientific Reports

      Volume: 11 Pages: 19963

    • DOI

      10.1038/s41598-021-99424-4

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Genetic and Phenotypic Characterization of Domestic Geese (Anser anser) in Egypt2021

    • Author(s)
      Abdel-Kafy El-Sayed M.、Ramadan Sherif I.、Ali Weal H.、Youssef Sabbah F.、Shabaan Hoda A.、El-Deighadi Amira、Inoue-Murayama Miho
    • Journal Title

      Animals

      Volume: 11 Pages: 3106-3106

    • DOI

      10.3390/ani11113106

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Urinary creatinine varies with microenvironment and sex in hibernating Greater Horseshoe bats (Rhinolophus ferrumequinum) in Korea2021

    • Author(s)
      Ryu Heungjin、Kinoshita Kodzue、Joo Sungbae、Kim Sun-Sook
    • Journal Title

      BMC Ecology and Evolution

      Volume: 21 Pages: 77

    • DOI

      10.1186/s12862-021-01802-z

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A field‐friendly method of measuring faecal glucocorticoid metabolite concentration as a simple stress checker in snow leopards2021

    • Author(s)
      Kinoshita Kodzue
    • Journal Title

      Methods in Ecology and Evolution

      Volume: 12 Pages: 1734-1746

    • DOI

      10.1111/2041-210x.13658

    • Peer Reviewed
  • [Presentation] 鳥類・哺乳類の生息域外保全2022

    • Author(s)
      村山美穂
    • Organizer
      日本学術会議シンポジウム 生物多様性とワイルドサイエンス
  • [Presentation] Application of methylation-sensitive high-resolution melting (MS-HRM) to estimate epigenetic age in captive Asian elephants (Elephas maximus)2022

    • Author(s)
      Kana Arai, Huiyuan Qi, Miho Inoue-Murayama
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Demographic history of the endangered Malayan tapir: A whole-genome resequencing approach2022

    • Author(s)
      QL Lim, M Murayama
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Population genetic structure of the Malayan tapirs in Peninsular Malaysia revealed by nine cross-species microsatellite markers: Genetic diversity compared to the Japanese ex-situ population.2022

    • Author(s)
      Qi Luan Lim, Christina Seok Yien Yong, Wei Lun Ng, Ahmad Ismail, Jeffrine J. Rovie-Ryan, Norsyamimi Rosli, Miho Inoue-Murayama, Geetha Annavi
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] How can we get information from old fecal samples of Iriomote cats? : Methods for species identification, sex determination, and hormone measurements.2022

    • Author(s)
      Yuko KURIYAMA, Kodzue KINOSHITA, Masako IZAWA, Miho INOUE-MURAYAMA, Gen’ichi IDANI
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Estimating Epigenetic Age in Okinawa rail (Hypotaenidia okinawae) using Methylation-Sensitive High-Resolution Melting (MS-HRM) .2022

    • Author(s)
      Satsuki Suzuki, Huiyuan Qi, Annegret Moto Naito-Liederbach, Yumiko Nakaya, Takashi Nagamine, Manabu Onuma, Miho Inoue-Murayama
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Study on adorable two dog breeds' personalities and their genetic basis.2022

    • Author(s)
      Chika Zemmoto, Yuki Matsumoto, Monori Arahori, Miho Inoue-Murayama
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Evaluating stressors in captive Tsushima leopard cats (Prionailurus bengalensis euptilurus) based on stress hormone concentration and behavioral changes2022

    • Author(s)
      Tanaka C, Kinoshita K, Iwashita A, Idani G
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] How can we get information from old fecal samples of Iriomote cats?: Methods for species identification, sex determination, and hormone measurements2022

    • Author(s)
      Kuriyama Y, Kinoshita K, Izawa M, Murayama M, Idani G
    • Organizer
      The 17th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] フタバガキ一次林に生息する野生ボルネオオランウータンにおけるオスの二型成熟と繁殖成功2021

    • Author(s)
      田島知之, 久世濃子, 金森朝子, 蔦谷匠, Renata S. MENDONCA, 山崎彩夏, Titol P. MALIM, Henry BERNARD, Vijay S. KUMAR, 井上英治, 村山美穂
    • Organizer
      第37回日本霊長類学会大会
  • [Presentation] Current and future aspects of conservation genetics of the endangered Malayan tapir2021

    • Author(s)
      Qi Luan Lim, Christina Seok Yien Yong, Wei Lun Ng, Ahmad Ismail, Jeffrine J. Rovie-Ryan, Norsyamimi Rosli, Geetha Annavi, Miho Inoue-Murayama
    • Organizer
      Association for Tropical Biology and Conservation 2021
    • Int'l Joint Research
  • [Presentation] 細胞周期関連遺伝子による無限に増殖可能なアマミノクロウサギ細胞の樹立2021

    • Author(s)
      片山雅史、折本愛、谷 哲弥、伊藤圭子、永塚貴弘、仲川清隆、村山美穂、大沼 学、清野 透、福田智一
    • Organizer
      日本動物細胞工学会2021年度大会
  • [Presentation] The genetic diversity, structure and demographic history in Tsushima leopard cat (Prionailurus bengalensis euptilurus).2021

    • Author(s)
      Hideyuki Ito, Nobuyoshi Nakajima, Manabu Onuma, Miho Murayama
    • Organizer
      第14回アジア保全医学会・第27回日本野生動物医学会2021年合同大会
    • Int'l Joint Research
  • [Presentation] Establishment of muscle derived fibroblasts and immortalized cells from Minke whale2021

    • Author(s)
      Aya Sekine, Izzah Munirah, Genta Yasunaga, Eriko Sugano, Hiroshi Tomita, Miho Inoue-Murayama, Tohru Kiyono, Tomokazu Fukuda
    • Organizer
      第14回アジア保全医学会・第27回日本野生動物医学会2021年合同大会
    • Int'l Joint Research
  • [Presentation] Primary and immortalized cell lines derived from the Amami rabbit (Pentalagus furnessi) and evolutionally conserved cell cycle control with CDK4 and Cyclin D12021

    • Author(s)
      Masafumi Katayama, Ai Orimoto, Tetsuya Tani, Keiko Ito, Takahiro Eitsuka, Kiyotaka Nakagawa, Miho Inoue-Murayama, Manabu Onuma, Tohru Kiyono, Tomokazu Fukuda
    • Organizer
      第14回アジア保全医学会・第27回日本野生動物医学会2021年合同大会
    • Int'l Joint Research
  • [Presentation] Can we design personalized welfare strategies using animals’ genetic information?-lessons from dogs.2021

    • Author(s)
      Chika Zemmoto, Minori Arahori, Yuki Matsumoto, and Miho Inoue-Murayama
    • Organizer
      第14回アジア保全医学会・第27回日本野生動物医学会2021年合同大会
    • Int'l Joint Research
  • [Presentation] Ex situ conservation of endangered wildlife, Tsushima leopard cats and Okinawa rails, using germ cells2021

    • Author(s)
      Mayako Fujihara, Kodzue Kinoshita, Hideyuki Ito, Satoshi Kusuda, Ryoma Otsuka, Takehito Kaneko, Takashi Nagamine, Manabu Onuma, Yumiko Nakaya, Takaharu Kawashima, Miho Inoue-Murayama
    • Organizer
      第14回アジア保全医学会・第27回日本野生動物医学会2021年合同大会
    • Int'l Joint Research
  • [Presentation] MHC of the Japanese golden eagle: insights into genetic diversity and pair-chemistry2021

    • Author(s)
      Annegret Moto Naito-Liederbach, Yu Sato, Nobuyoshi Nakajima, Miho Inoue-Murayama
    • Organizer
      第14回アジア保全医学会・第27回日本野生動物医学会2021年合同大会
    • Int'l Joint Research
  • [Presentation] Diversity of MHC genes of endangered Japanese raptors: a preliminary comparison between Golden eagles and Mountain hawk-eagles2021

    • Author(s)
      Annegret M. Naito-Liederbach, Yu Sato, Nobuyoshi Nakajima, Toru Yamazaki, Taku Maeda, Miho Inoue-Murayama
    • Organizer
      The 16th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Whole-genome resequencing of endangered Malayan tapir for novel discovery of genome-wide single nucleotide polymorphism loci2021

    • Author(s)
      Qi Luan Lim, Miho Inoue-Murayama
    • Organizer
      The 16th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Some novel SNPs may affect dogs’ personality in two breeds2021

    • Author(s)
      Chika Zemmoto, Minori Arahori, Yuki Matsumoto, Miho Inoue-Murayama
    • Organizer
      The 16th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Preliminary analysis on the epigenetic age estimation of captive Asian elephants (Elephas maximus)2021

    • Author(s)
      Kana Arai, Miho Inoue-Murayama
    • Organizer
      The 16th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] 野生ボルネオオランウータンにおけるオスの二型成熟と繁殖成功2021

    • Author(s)
      田島知之, 久世濃子, 金森朝子, 蔦谷匠, Renata S. Mendonca, 山崎彩夏, Titol P. Malim, Henry Bernard, Vijay S. Kumar, 井上英治, 村山美穂
    • Organizer
      第 40 回日本動物行動学会大会
  • [Presentation] Vitrification of ovarian tissues and development of primordial follicles by in vitro culture/ xenotransplantation in model animals.2021

    • Author(s)
      Mayako Fujihara, Miho Inoue-Murayama
    • Organizer
      European Society of Medicine (ESMED) Congress 2021
    • Int'l Joint Research
  • [Presentation] Genetic assessment of the captive Malayan tapir in Japanese zoos2021

    • Author(s)
      QL Lim, G Annavi, M Inoue-Murayama
    • Organizer
      BEM 2021 Conference
    • Int'l Joint Research
  • [Presentation] Grasscutter Domestication to Improve the Nutrition of Local People in the Upper West Region of Ghana2021

    • Author(s)
      Titus S. S. Dery, Christopher Adenyo, Boniface B. Kayang, Rob Ogden, Miho Murayama
    • Organizer
      The 36th Congress of Japan Association for International Health
  • [Presentation] DNAメチル化を指標としたネコ科動物の年齢推定2021

    • Author(s)
      斉 惠元、木下 こづえ、森 尚志、松本 佳織、松井 由希子、村山 美穂
    • Organizer
      日本DNA多型学会第30回学術集会
  • [Presentation] Demographic history of the Malayan tapir: A whole-genome resequencing approach2021

    • Author(s)
      QL Lim, M Murayama
    • Organizer
      日本DNA多型学会第30回学術集会
  • [Presentation] Ex situ conservation of endangered wildlife, Tsushima leopard cats and Okinawa rails, using germ cells.2021

    • Author(s)
      Fujihara M, Kinoshita K, Ito H, Kusuda S, Otsuka R, Kaneko T, Nagamine T, Onuma M, Nakaya Y, Kawashima T, Inoue-Murayama M
    • Organizer
      The 14th Asian Society of Conservation Medicine/ 27th Japanese Society of Zoo and Wildlife Medicine 2021 Joint Conference
    • Int'l Joint Research
  • [Presentation] Relationship between stress hormone concentration and behavioral changes in captive Tsushima leopard cats (Prionailurus bengalensis euptilurus)2021

    • Author(s)
      Tanaka C, Kinoshita K, Iwashita A, Idani G
    • Organizer
      The 16th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Reproductive physiology of Iriomote cat (Prionailurus bengalensis iriomotensis)2021

    • Author(s)
      Kuriyama Y, Kinoshita K, Izawa M, Idani G
    • Organizer
      The 16th International Symposium on Primatology and Wildlife Science
    • Int'l Joint Research
  • [Presentation] Cortisol as a clue of physiological stress: Decoding in extant species and its insights into extinct species2021

    • Author(s)
      Pokharel SS, Brown J, Kinoshita K, Seshagiri PB, Sukumar R
    • Organizer
      VIII International Conference on Mammoths and their Relatives
    • Int'l Joint Research
  • [Presentation] 野生ボルネオ・オランウータン(Pongo pygmaeus morio)の雌の妊娠と一斉結実との関係ー15年間の記録-2021

    • Author(s)
      久世濃子,金森朝子,山崎彩夏,田島知之,蔦谷匠,Renata Mendonca, Henry Bernard,木下こづえ
    • Organizer
      第37回日本霊長類学会
  • [Presentation] 野生の仮面ーオランウータンの顔の発達とホルモン動態2021

    • Author(s)
      田島知之,義村弘仁,黒鳥英俊,木下こづえ
    • Organizer
      第26回日本顔学会大会
  • [Book] 個性学入門2021

    • Author(s)
      村山美穂
    • Total Pages
      244
    • Publisher
      朝倉書店
    • ISBN
      978-4-254-10295-6
  • [Remarks] 保全生物学コンソーシアム

    • URL

      http://web.cc.iwate-u.ac.jp/~takehito/wild_animal/

  • [Remarks] 野生動物研究センター 村山研究室

    • URL

      http://miho-murayama.sakura.ne.jp/

URL: 

Published: 2023-12-25  

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