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1997 Fiscal Year Final Research Report Summary

Adaptation and genetic differentiation in common wheat revealed by the analysis of SCAR markers

Research Project

Project/Area Number 08660008
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Breeding science
Research InstitutionOkayama University

Principal Investigator

KATO Kenji  Okayama University, Faculty of Agriculture, Associate Professor, 農学部, 助教授 (40161096)

Project Period (FY) 1996 – 1997
Keywordswheat / adaptation / phylogenetic differentiation / ABA responsive gene / PCR-RFLP / RAPD / SCAR marker
Research Abstract

In east Asia, spring wheat is mainly cultivated under dry condition in north/west China, while winter wheat adapted to wet condition is predominant in south/east China. Therefore, they should exhibit different adaptability to abiotic stresses such as low temperature and drought.
In the present study, RAPD polymorphism as adaptatively neutral marker and PCR-RFLP polymorphism for ABA responsive genes (Em and EmH2A) were analyzed, to understand the genetic and ecological differentiation in east Asian wheat.
Genetic differentiation between north/west China and south/east China was clearly indicated by RAPD analysis for 56 wheat landraces of China, Korea and Japan. Clear differentiation was observed specially among spring type wheat. PCR-RFLP and sequence analysis for Em gene revealed the existance of four site changes in 5' untranslated region, and wheat landraces were classified into three types (A, B and C types). A single site change (+, -) was also detected in 3' untranslated region of EmH2A gene. Geographical variation of these PCR-RFLP showed clear difference again among spring type wheat, type B of Em and "+" type of EmH2A being frequent in eastern areas. The frequency of three types of Em was different between cultivar clusters classified by RAPD polymorphism. Specially in spring type wheat, type B of Em was only seen in three clusters (I, III and IV). In type B, ABA response of Em gene could be changed, since base substitution was frequently found in ABA responsive element. It was indicated from these results that type B of Em was selected for the adaptation to autumn sowing and/or wet condition in south/east China, being resulted in the establishment of a unique cultivar group which was genetically differentiated from those of north/west China.

  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] K.Kato: "Genetic differentiation in common wheat and its characterization by molecular analysis" Proc.9th Int.Wheat Genet.Symp.2. 240-243 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Iwaki: "Geographical vasiation of Van genotype in wheat caused by the selection for adaptability to winter coldness." Proc.9th Int.Wheat Genet.Symp.4. 39-41 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 松本 一信: "東アジアのコムギにおける適応と遺伝的分化 1.ABAQ応答性遺伝子領域におけるPCR-RFLP多型" 育種学雑誌. 48(別.2). 222-222 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 加藤鎌司: "東アジアのコムギにおける適応と遺伝的分化 2.チベット在来コムギ品種の春播性遺伝子型及びその地理的変異" 育種学雑誌. 48(別.2). 223-223 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 松本一信: "東アジアのコムギにおけるRAPD多型と遺伝的分化" 育種学雑誌. 47(別.2). 146-146 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宮嵜朋浩: "花粉不稔遺伝子の地理的分布から見たコムギ系統分化の解析.III.イランから日本に至る地域における変異" 育種学雑誌. 47(別.1). 146-146 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kato: "A report of the wheat field research in the Cantinal Tibst,China" Wheat Information Service. 83. 113-114 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 鷲尾建紀: "アイソザイム遺伝子の地理的分布から見たコムギ・系統分化の解析.III.アジアにおけるエステラーゼ・アイソザイムの変異" 育種学雑誌. 46(別.2). 329-329 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岩城一考: "コムギにおける出穂特性の地理的変異 VII.播性及び春播性遺伝子型から見た生態的分化" 育種学雑誌. 46(別.2). 187-187 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kato K., K.Matsumoto and T.Washio: "Genetic differentiation in common wheat and its characterization by molecular analysis." Proc 9th Int Wheat Genet Symp. Vol.2. 240-243 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Iwaki K.and K.Kato: "Geographical variation of Vrn genotype in wheat caused by the selection for adaptability to winter coldness." Proc 9th Int Wheat Genet Symp. Vol.4. 39-41 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Matsumoto and K.Kato: "Adaptation and genetic differentiation in east Asian wheat.1.PCR-RFLP ploymorphism in ABA responsive genes." Breeding Science. 48 (Suppl.2). 222 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Kato, T.Washio and H.Tsujimoto: "Adaptation and genetic differentiation in east Asian wheat.2.Geographical variation in Vrn genotype of Tibetan landraces." Breeding Science. 48 (Suppl.2). 223 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Matsumoto, T.Washio and K.Kato: "RAPD ploymorphism and genetic differentiation among common wheat varieties in the eastern Asia." Breeding Science. 47 (Suppl.2). 146 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Miyazaki, K.Kato and A.Hosono: "Phylogenetic differentiation in common wheat revealed by geographical distribution of pollen killer genes.III.Variation in the areas from Iran to Japan." Breeding Science. 47 (Suppl.1). 146 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kato, K., H.Tsujimoto, Y.Zhou and C.Yen: "A Report of the Wheat Field Research in the Central Tibet, China." Wheat formation Servise. 83. 113-114 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Iwaki and K.Kato: "Geographical variation of heading traits in wheat.VII.Ecological differentiation revealed by growth habit and Vrn genotype." Breeding Science. 46 (Suppl.2). 187 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Washio and K.Kato: "Phylogenetic differentiation in common wheat revealed by geographical distribution of isozyme genes.III.Variation in esterase in Asia." Breeding Science. 46 (Suppl.2). 329 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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