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Functional analysis of the BmNRF6 gene family involved in lifespan of the silkworm

Research Project

Project/Area Number 21H02202
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 39050:Insect science-related
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Ito Katsuhiko  東京農工大学, (連合)農学研究科(研究院), 准教授 (80725812)

Co-Investigator(Kenkyū-buntansha) 横山 岳  東京農工大学, (連合)農学研究科(研究院), 教授 (20210635)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2023: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2021: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Keywordsカイコ / 致死 / 寿命 / 突然変異 / ゲノム編集
Outline of Research at the Start

長い養蚕の歴史の中で、カイコの致死や寿命に関わる突然変異体は数多く発見されているものの、遺伝子レベルで明らかになった例は少ない。これらの変異体の解析は、昆虫の生命維持に直結する重要な遺伝子の解明につがなるとともに、チョウ目害虫の防除のための基礎研究にもつながる。我々はこれまで、「幼虫の孵化直後の致死」および「成虫の寿命」に関わる2つの変異体の解析を進め、これらがBmNRF6遺伝子ファミリーに所属する遺伝子によって制御されていることを発見した。本研究では、これらの変異体と正常個体の代謝や遺伝子発現を比較することで、カイコの寿命に関わるBmNRF6遺伝子群の昆虫生理機能の解明に取り組む。

Outline of Final Research Achievements

The aim of this study is to identify the function of BmNRF6 gene family responsible for the larval lethal and short life span of imago. In the l-nl gene responsible for lethality immediately after hatching, we have successfully isolated the causative gene throughout genome editing approach and allelic test between knockout individuals and mutants. In the sli gene responsible for short life span of imago, we found that the amount of glycerol in the moth body decreased rapidly only in the mutant, suggesting that the phenotype of short life span of imago may be related to abnormal energy metabolism. In the BmNRF6 gene family, we analyzed tissue-specific gene expression patterns in the brain, nervus system, silkgland, testis, ovary, fat body, malpighian tubules, foregut, midgut, and hindgut, in all 18 BmNRF6 gene, and found that each gene is expressed differently in each tissue and even in different amounts. In addition, we have successfully generated four types of BmNRF6 knockout lines.

Academic Significance and Societal Importance of the Research Achievements

我々はカイコのゲノム上に18種類のBmNRF6遺伝子が存在することを明らかにし、そのうちの2つがカイコの幼虫致死と成虫寿命に関わることを見出した。NRF6遺伝子は他生物種においてその機能がほとんど明らかになっていない。そのため、本研究で得られる成果はカイコのみならず昆虫の新たな生理機能の探索につながると考えられる。また本研究は、カイコを従来の養蚕業上重要な昆虫として位置づけるのではなく、作物の害虫であるチョウ目昆虫として考えることで、致死や短命という表現型をペストコントロールに展開することも目的としている。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (34 results)

All 2024 2023 2022 2021

All Journal Article (10 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 6 results) Presentation (24 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Journal Article] Molecular basis of host plant recognition by silkworm larvae2024

    • Author(s)
      Endo Haruka、Tsuneto Kana、Mang Dingze、Zhang Wenjing、Yamagishi Takayuki、Ito Katsuhiko、Nagata Shinji、Sato Ryoichi
    • Journal Title

      Journal of Insect Physiology

      Volume: 154 Pages: 104628-104628

    • DOI

      10.1016/j.jinsphys.2024.104628

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Diversity of Antimicrobial Peptides in Silkworm2023

    • Author(s)
      Makwana Pooja、Rahul Kamidi、Ito Katsuhiko、Subhadra Bindu
    • Journal Title

      Life

      Volume: 13 Issue: 5 Pages: 1161-1161

    • DOI

      10.3390/life13051161

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Dietary compounds activate an insect gustatory receptor on enteroendocrine cells to elicit myosuppressin secretion2023

    • Author(s)
      Mang Dingze、Toyama Tomoko、Yamagishi Takayuki、Sun Jing、Purba Endang R.、Endo Haruka、Matthews Melissa M.、Ito Katsuhiko、Nagata Shinji、Sato Ryoichi
    • Journal Title

      Insect Biochemistry and Molecular Biology

      Volume: 155 Pages: 103927-103927

    • DOI

      10.1016/j.ibmb.2023.103927

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nodule formation in Bombyx mori larvae is regulated by BmToll10-3.2022

    • Author(s)
      Suzuki T, Tang S, Otuka H, Ito K, Sato R.
    • Journal Title

      J Insect Physiol.

      Volume: 142 Pages: 104441-104441

    • DOI

      10.1016/j.jinsphys.2022.104441

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resistance mechanism of Nid-1, a dominant non-susceptibility gene, against Bombyx mori densovirus 1 infection2022

    • Author(s)
      Ito Katsuhiko、Sivaprasad Vankadara、Katsuma Susumu、Yokoyama Takeshi、Kadono-Okuda Keiko
    • Journal Title

      Virus Research

      Volume: 318 Pages: 198849-198849

    • DOI

      10.1016/j.virusres.2022.198849

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] カイコ濃核病ウイルス抵抗性遺伝子群の単離とその利用2022

    • Author(s)
      伊藤克彦
    • Journal Title

      蚕糸・昆虫バイオテック

      Volume: 91 Pages: 115-122

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 特集:「カイコ突然変異体の原因遺伝子の単離とその利用について考える」にあたって2022

    • Author(s)
      伊藤克彦
    • Journal Title

      蚕糸・昆虫バイオテック

      Volume: 91 Pages: 71-74

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Genetic characterisation of an Iflavirus associated with a vomiting disease in the Indian Tropical tasar silkworm, Antheraea mylitta2022

    • Author(s)
      Ponnuvel KM, Miranda JR, Terenius O, Li W, Ito K, Khajje D, Shamitha G, Jagadish A, Dubey H, Mishra RK
    • Journal Title

      Virus Research

      Volume: 311 Pages: 198703-198703

    • DOI

      10.1016/j.virusres.2022.198703

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An investigation into the effects of infection and ORF expression patterns of the Indian bidensovirus isolate (BmBDV) infecting the silkworm Bombyx mori2022

    • Author(s)
      Gupta, T., Raghavendar, G., Terenius, O., Ito, K., Mishra, KR., Ponnuvel KM
    • Journal Title

      VirusDisease

      Volume: 33 Issue: 1 Pages: 76-83

    • DOI

      10.1007/s13337-021-00750-y

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Development of interspecific semiconsomic strains between the domesticated silkworm, <i>Bombyx mori</i> and the wild silkworm, <i>B. mandarina</i>2021

    • Author(s)
      Fujii T, Kiuchi T, Daimon T, Ito K, Katsuma S, Shimada T, Yamamoto K, Banno Y
    • Journal Title

      Journal of Insect Biotechnology and Sericology

      Volume: 90 Issue: 2 Pages: 2_033-2_040

    • DOI

      10.11416/jibs.90.2_033

    • NAID

      130008072152

    • ISSN
      1346-8073, 1884-7978
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] ノックアウト個体を用いた卵致死に関わるカイコ発育遅延D遺伝子の同定2024

    • Author(s)
      白田 乃々香・横山 岳・伊藤 克彦
    • Organizer
      日本蚕糸学会第94回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] カイコのNRF6遺伝子の組織別発現解析とノックアウト個体の作出2024

    • Author(s)
      諫早向日葵,横山岳,伊藤克彦
    • Organizer
      日本蚕糸学会第94回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] カイコ薄紙繭突然変異体の繭形成機構の解析2024

    • Author(s)
      古谷野 渉・小薗 拓馬・佐藤 道夫・横山 岳・伊藤 克彦
    • Organizer
      日本蚕糸学会第94回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] カイコ綿蚕突然変異体の原因遺伝子の同定と繭形成メカニズムの解析2024

    • Author(s)
      佐野圭祐・横山岳・伊藤克彦
    • Organizer
      日本蚕糸学会第94回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] タンポポを消化可能な蚕系統の選抜と育成2024

    • Author(s)
      樫山 将光・伊藤 克彦・横山 岳
    • Organizer
      日本蚕糸学会第94回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] RNA-seq解析によるカイコk不眠蚕の原因遺伝子の同定2024

    • Author(s)
      伊藤 克彦・横山 岳
    • Organizer
      日本蚕糸学会第94回大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] カイコ濃核病ウイルス1型のカイコへの病原性と抵抗性遺伝子Nid-1の抵抗性機構の調査2023

    • Author(s)
      伊藤 克彦・横山 岳
    • Organizer
      第80回昆虫病理研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Functional analysis of Nid-1, a dominant resistance gene, to Bombyx mori densovirus 12023

    • Author(s)
      Katsuhiko Ito, Takeshi Yokoyama
    • Organizer
      The 7th Asia-Pacific Congress of Sericulture and Insect Biotechnology (APSERI-2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Positional Cloning and Detection of Gene Responsible for Lethal “Non-Molting-K” Mutation in the Silkworm Bombyx mori.2023

    • Author(s)
      アドリアン トリアンディ・ 横山 岳・伊藤 克彦
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] カイコ綿蚕突然変異体の繭形質の性状調査と原因遺伝子の同定2023

    • Author(s)
      佐野圭祐・横山岳・伊藤克彦
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] カイコ薄紙繭突然変異体の有力な候補遺伝子の単離2023

    • Author(s)
      古谷野渉・横山岳・伊藤克彦
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] タンポポを摂食し成育する蚕系統の探索2023

    • Author(s)
      樫山将光・伊藤克彦・横山岳
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] クワコ及びカイコ幼虫に寄生する新種の寄生蜂クワコサムライコマユバチ(Protapanteles bombycis)の生態2023

    • Author(s)
      小野祥児・前藤薫・伊藤克彦・横山岳
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] カイコNRF6遺伝子の発現解析および機能解析2023

    • Author(s)
      諫早 向日葵・横山岳・伊藤克彦.
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] カイコ新規致死突然変異体light orange lethalの原因遺伝子(l-og)の同定2023

    • Author(s)
      諫早 向日葵・竹村 洋子・大沼 昭夫・持田 裕司・横山 岳・伊藤 克彦
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] カイコ発育遅延D突然変異体の胚致死形質に関わる原因遺伝子の単離2023

    • Author(s)
      青木宗也,横山岳,伊藤克彦
    • Organizer
      日本蚕糸学会第93回大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Recent biotechnology of sericulture in Japan2022

    • Author(s)
      Katsuhiko ITO
    • Organizer
      Climate Smart Sericulture 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Differential immune responses against Staphylococcus aureus infection in geographically distinct strains of Nistari (Bombyx mori L.)2022

    • Author(s)
      Pooja Makwana, Katsuhiko Ito, Rahul K., Raviraj VS, Pradeep A.R., Sivaprasad V, Kishor Kumar C.M.
    • Organizer
      The 26th International congress on sericulture and silk industry
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 温湯処理によって得られた単為発生蚕はクローン蚕か?2022

    • Author(s)
      長田はるな・伊藤克彦・横山岳
    • Organizer
      日本蚕糸学会第92回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] クワコおよびカイコの幼虫に寄生する寄生蜂 (Protapanteles sp.)の生態2022

    • Author(s)
      小野祥児・前藤薫・横山岳・伊藤克彦
    • Organizer
      日本蚕糸学会第92回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] カイコ成虫短命変異体の候補遺伝子の機能解析2022

    • Author(s)
      小俣公洋・横山岳・伊藤克彦
    • Organizer
      日本蚕糸学会第92回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 成虫短命変異体における原因遺伝子sliの探索2021

    • Author(s)
      小俣公洋・横山岳・伊藤克彦
    • Organizer
      第6回蚕糸・昆虫機能利用関東地区学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 単為発生蚕の発生遺伝学的解析2021

    • Author(s)
      長田はるな・伊藤克彦・横山岳
    • Organizer
      第6回蚕糸・昆虫機能利用関東地区学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] カイコ濃核病ウイルスに対する宿主カイコの抵抗性機構2021

    • Author(s)
      伊藤克彦
    • Organizer
      第72回日本衛生動物学会東日本支部大会
    • Related Report
      2021 Annual Research Report
    • Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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