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DNA analysis for choromosome size changing in plant

Research Project

Project/Area Number 23570122
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biodiversity/Systematics
Research InstitutionTokai University

Principal Investigator

HOSHI Yoshikazu  東海大学, 農学部, 准教授 (70332088)

Co-Investigator(Kenkyū-buntansha) SOEJIMA Akiko  熊本大学, 大学院自然科学研究科, 教授 (00244674)
Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords種分化 / 染色体 / 反復配列
Research Abstract

Angiosperms show unusually wide range of genomes size with nearly 2,000-fold. The largest DNA amount measured is found in Fritillaria species (Liliaceae) with about 130 pg (130,000 Mbp) in the genome, possessing gigantic chromosomes with 10 to 20 µm. In contrast, the smallest genome is recently found in two carnivorous plant species of Genlisea (Lentibulariaceae) with just 0.06 pg (63 Mbp). The plant groups with wide genome ranges are restricted to some large families such as Asteraceae, Fabaceae, Liliaceae, Orchidaceae and Poaceae. Whereas sundew carnivorous plant group, the Droseraceae and its closely related family Drosophyllaceae, show unexpectedly high genome size variation with tiny to giant chromosomes. New insight was obtained after analyzing large (L-type) and small (S-type) chromosome sets in the genome composition in Aster (Asteraceae) and Drosera (Droseraceae).

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (10 results)

All 2013 2012 2011

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (6 results)

  • [Journal Article] <i>Technical note</i> An Electron Micrograph of Guard Cells Cryofixed by Metal-Contact Type Rapid-Freezing Method2013

    • Author(s)
      Hoshi, Y., Yahata, T., Kamigomori, H. and Soejima, A.
    • Journal Title

      CYTOLOGIA

      Volume: 78 Issue: 1 Pages: 1-2

    • DOI

      10.1508/cytologia.78.1

    • NAID

      10031178165

    • ISSN
      0011-4545, 1348-7019
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polyploid genome structure of Drosera spatulata complex (Droseraceae)2012

    • Author(s)
      Shirakawa, J., Nagano, K. and Hoshi, Y.
    • Journal Title

      Cytologia

      Volume: 77 Pages: 97-106

    • NAID

      10030120204

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Polyploid Genome Structure of <i>Drosera spatulata</i> Complex (Droseraceae)2012

    • Author(s)
      Shirakawa, J., Nagano, K. and *Hoshi, Y.
    • Journal Title

      CYTOLOGIA

      Volume: 77 Issue: 1 Pages: 97-106

    • DOI

      10.1508/cytologia.77.97

    • NAID

      130004448171

    • ISSN
      0011-4545, 1348-7019
    • Related Report
      2012 Research-status Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] A chromosome study of two centromere differentiating Drosera species, D. arcturi and D. regia2011

    • Author(s)
      Shirakawa, J., Nagano, K. and *Hoshi, Y.
    • Journal Title

      Caryologia

      Volume: 64 Pages: 453-463

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] Genome constitution effect of Drosera spatulata complex on type I allergy2013

    • Author(s)
      Inagaki, A., Shirakawa, J., Hoshi, Y., and Kobori, M.
    • Organizer
      The Eighth International Conference of Chromosome Botany, Hiroshima Jogakuin University
    • Place of Presentation
      Hiroshima, Japan
    • Year and Date
      2013-11-23
    • Related Report
      2013 Final Research Report
  • [Presentation] DNA polymorphic analysis of Drosera spatulata complex (Droseraceae)2013

    • Author(s)
      Tungkajiwangkoon, S., Inagaki, A., Shirakawa, J. and Hoshi, Y.
    • Organizer
      The Eighth International Conference of Chromosome Botany, Hiroshima Jogakuin University
    • Place of Presentation
      Hiroshima, Japan
    • Year and Date
      2013-11-23
    • Related Report
      2013 Final Research Report
  • [Presentation] Cytogenetic study for genome organization of artificial triploidal hybrid between Drosera rotundifolia and D. spatulata2013

    • Author(s)
      Hoshi, Y., Shirakawa, J. and Kobori, M.
    • Organizer
      The Eighth International Conference of Chromosome Botany, Hiroshima Jogakuin University
    • Place of Presentation
      Hiroshima, Japan
    • Year and Date
      2013-11-23
    • Related Report
      2013 Final Research Report
  • [Presentation] RAPD profiling of Drosera spatulata and its related species2012

    • Author(s)
      Inagaki, A., Shirakawa, J. and Hoshi, Y.
    • Organizer
      The Seventh International Conference of Chromosome Botany, Tokai University (Aso Campus)
    • Place of Presentation
      Kumamoto, Japan, (Oral Presentation)
    • Year and Date
      2012-10-14
    • Related Report
      2013 Final Research Report
  • [Presentation] RAPD profiling of Drosera spatulata and its related species2012

    • Author(s)
      Ayato Inagaki, Junichi Shirakawa, Yoshikazu Hoshi
    • Organizer
      The Seventh Annual Meeting of International Society of Chromosome Botany
    • Place of Presentation
      東海大学
    • Related Report
      2012 Research-status Report
  • [Presentation] RAPD fragment FISH analysis of Drosera spatulata complex (Droseraceae)2011

    • Author(s)
      Shirakawa, J., Hoshi, Y., Nagano, K. and Kondo, K.
    • Organizer
      The Sixth International Conference of Chromosome Botany, Tokyo University of Agriculture
    • Place of Presentation
      Kanagawa, Japan, (Oral Presentation)
    • Year and Date
      2011-11-20
    • Related Report
      2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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