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Search for the wild ancestor and the original birth place of buckwheat

Research Project

Project/Area Number 02454037
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Breeding science
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

OHNISHI Ohmi  Kyoto Univ. Fac. Agriculture Assoc. Professor, 農学部, 助教授 (20109044)

Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 1992: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1991: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1990: ¥2,900,000 (Direct Cost: ¥2,900,000)
KeywordsBuckwheat / Tatary buckwheat / Wild ancestor / Origin of cultivated plant / Taxonomy / Isozymes / ctDNA / Fagopyrum cymosum / 野生ソバ / 中国雲南省 / 中国四川省 / <Fagopyrum>___ー <cymosum>___ー
Research Abstract

More than a century ago, De Candolle proposed the Siberia-northern China hypothesis on the origin of buckwheat and his hypothesis has been retained until recently.
For the search of the wild ancestor of buckwheat, five expeditions to China, and three to the Himalayan hills and experimental analyses of the collected samples for their isozymes and ctDNA were conducted and they led to the following results:
(1) Wild Fagopyrum species grow only in southern China. F. cymosum and F. gracilipes have an exceptionally wider distribution extending to eastern Tibet and the Himalayan hills.
(2) Classification of Fagopyrum species based on morphology, isozymes and ctDNA all led to the same phylogenetic tree, where F. esculentum ssp. ancestralis and F. tataricum ssp. Potanini are the unique wild species closely related to common and tatary buckwheat, respectively. Other wild species are only distantly related to cultivated species.
(3) Two wild subspecies mentioned above are the only wild species that can be intercrossed to cultivated buckwheat.
From these experimental results, I arrived at the conclusion: Common buckwheat originated in northwestern parts of Yunnan province from the wild ancestor F. esculentum ssp. ancestralis Ohnishi probably by Yi tribe, while tatary buckwheat was born in northern Sichuan province from F. tataricum ssp. Potanini Batalin.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] Ohnishi,O.: "Discovery of the wild ancestor of commom buckwheat" Fagopyrum. 11. 5-10 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Ohnishi,O.: "Buckwheat in Bhutan" Fagopyrum. 12. 5-13 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Ohnishi,O.: "A memorandum on the distribution of Fagopyrum species in Tibet and Himalayan hills" Fagopyrum. 13. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Ohnishi, O.: "Discovery of the wild ancestor of common buckwheat" Fagopyrum. 11. 5-10 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Ohnishi, O.: "Buckwheat in Bhutan" Fagopyrum. 12. 5-13 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Ohnishi, O.: "A memorandum on the distribution of Fagopyrum species in Tibet and Himalayan hills" Fagopyrum. 13. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Ohnish,O.: "Buckwheat in Bhutan" Fagopyrum. 12. 5-13 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Ohnish,O.: "Amemorandum on the distribution of Fagopyrum species in Tibet and Himalayan hills" Fagopyrum. 13. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] Ohnishi,Ohmi: "Discovery of the wild ancestor of common buckwheat" Fagopyrum. 11. 5-10 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Ohnishi,Ohmi: "Buckwheat in Bhutan" Fagopyrum. 12. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] Ohnishi,Ohmi: "Discovery of the wild ancestor of common buckwheat" Fagopyrum. 11. (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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