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Environmentally induced chromosome elimination of aphids

Research Project

Project/Area Number 26891026
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Genetics/Chromosome dynamics
Research InstitutionNational Institute for Basic Biology

Principal Investigator

OGAWA Kota  基礎生物学研究所, 生物機能解析センター, NIBBリサーチフェロー (40733960)

Project Period (FY) 2014-08-29 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords染色体放出 / 環境応答 / トランスクリプトーム / エンドウヒゲナガアブラムシ / ネアブラムシ / アブラムシ / 季節適応 / 遺伝子発現局在 / エピジェネティクス / ヒストン
Outline of Final Research Achievements

Most aphids show reproductive polyphenism, that is, they alternate their reproductive modes from parthenogenesis to sexual reproduction. Parthenogenetic oocytes can develop into various morphs, including viviparous and oviparous females and males, depending on the maternal physiological states that are affected by surrounding environments.
To reveal the regulatory mechanisms determining developmental fates of parthenogenetic oocytes depending on maternal conditions, transcriptomic analysis of the germaria was carried out. In germaria in which males are produced with X-chromosome reduction, many genes were highly expressed in comparison with the other categories producing females. Furthermore, histone genes and aphid-specific duplicated genes were identified as candidates for the fate determination based on the Gene-Ontology-based enrichment analysis and differential expression analysis. The gene duplication is suggested to enable aphids to acquire the drastic polyphenism.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • Research Products

    (3 results)

All 2015

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results) (of which Invited: 1 results)

  • [Journal Article] アブラムシの表現型多型:世代を超えた発生制御2015

    • Author(s)
      小川浩太・三浦徹
    • Journal Title

      Comparative Endocrinology

      Volume: 41 Issue: 154 Pages: 34-37

    • DOI

      10.5983/nl2008jsce.41.34

    • NAID

      130004952357

    • ISSN
      1882-6636, 1882-6644
    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] アブラムシ学と生物学:アブラムシ研究の意義とこれから2015

    • Author(s)
      小川浩太・重信秀治
    • Organizer
      ユニークな少数派実験動物を扱う若手が最先端アプローチを勉強する会
    • Place of Presentation
      愛知県岡崎市 岡崎コンファレンスセンター
    • Year and Date
      2015-08-18
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] ハルニレフィロキセラOlegia ulmifoliaのゲノム解析から紐解くアブラムシの進化2015

    • Author(s)
      小川浩太・尾納隆大・山口勝司・重信秀治
    • Organizer
      日本アブラムシ研究会 第5回研究集会
    • Place of Presentation
      愛知県岡崎市 岡崎コンファレンスセンター
    • Year and Date
      2015-08-07
    • Related Report
      2015 Annual Research Report

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Published: 2014-09-09   Modified: 2017-05-10  

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