• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

ANALYSIS ON ECOLOGICAL AND GENETIC DIVERSITY EVOLVED UNDER CULTIVATED ENVIRONMENT IN GENUS ECHINOCHLOA

Research Project

Project/Area Number 10836016
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 自然史科学
Research InstitutionOSAKA PREFECTURE UNIVERSITY

Principal Investigator

YAMAGUCHI Hirofumi  GRADUATE SCHOOL OF AGRICULTURE AND BIOLOGICAL SCIENCES, OSAKA PREFECTURE UNIVERSITY, PROFESSOR, 農学生命科学研究科, 教授 (20112542)

Co-Investigator(Kenkyū-buntansha) NISHINO Akako  COLLEGE OF INTEGRATED ARTS AND NATURAL SCIENCES, OSAKA PREFECTURE UNIVERSITY RESEARCH ASSOCIATE, 総合科学部, 助手 (20264822)
SOEJIMA Akiko  COLLEGE OF INTEGRATED ARTS AND NATURAL SCIENCES, OSAKA PREFECTURE UNIVERSITY RESEARCH ASSOCIATE, 総合科学部, 助手 (00244674)
MOCHIOKA Ryosuke  COLLEGE OF AGRICULTURE, OSAKA PREFECTURE UNIVERSITY LECTURER (20221624)
Project Period (FY) 1998 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1998: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywordsgenus Echinochloa / adaptation / genetic diversity / domestication
Research Abstract

Genetic and morphological diversity was analyzed on the Echinochloa materials mainly collected from Yungui Highlands in China including species from global area in order to understand the process of adaptation such as domestication to crops and mimic weeds to specialists in cultivated fields. Isozymic and RAPD analyses indicated clearly the identity of biological species (E.crus-galli-E.esculenta complex, E.oryzicola complex, E.colonum-E.frumentacea complex), which was supported by the sequencing of non-coding region of trnT-L-F genes on cpDNA.Herbarium study, morphological evaluation at experimental farm and DNA analyses on a lot of accessions revealed the distance-dependent diversification of DNA variation (both in sequence and RAPDs), the wider distribution of domesticated traits as E.esculenta in E.crus-galli complex and the narrow distribution of domesticated traits as cultivated E.oryzicola. Specialization as weeds was found as mimic features and non-shattering habit of diaspore, which evolved as parallel in E.crus-galli complex and E.oryzicola complex. Seedling stage mimic was found in both species. Panicle mimic and auricle-like hairs on the collar of leaf sheath was particularly in E.oryzicola, which was conventionally treated as E.persistentia taxonomically. Non-shattering of diaspore was found in both complexes in the paddy fields, rainfed and irrigated paddies, and upland fields. Since this analyses also provide recognition of biological species and infraspecific taxa, and information on molecular identification technique. Further investigation on type specimen will provide delimitation of correct nomenclature name and others, which will solve the taxonomic confusion of this genus Echinochloa. The final report of this project includes 16 figures, 5 tables, 8 plates and text.

Report

(4 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report

Research Products

(15 results)

All Other

All Publications

  • [Publications] 「研究成果報告書概要(和文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(和文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(和文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(和文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(和文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(欧文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(欧文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(欧文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(欧文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications] 「研究成果報告書概要(欧文)」より

    • Related Report
      2000 Final Research Report Summary
  • [Publications]

    • Related Report
      2000 Annual Research Report
  • [Publications]

    • Related Report
      2000 Annual Research Report
  • [Publications]

    • Related Report
      1999 Annual Research Report
  • [Publications]

    • Related Report
      1999 Annual Research Report
  • [Publications]

    • Related Report
      1998 Annual Research Report

URL: 

Published: 1998-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi