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1991 Fiscal Year Final Research Report Summary

Linkage analysis between gene for grain shattering and semi-dwarfing gene and character expression of shattering in rice

Research Project

Project/Area Number 01560002
Research Category

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

Allocation TypeSingle-year Grants
Research Field Breeding science
Research InstitutionUniversity of Tsukuba

Principal Investigator

KIKUCHI Fumio  Univ. of Tsukuba, Inst. of Agri. and Forest. Professor, 農林学系, 教授 (30161425)

Co-Investigator(Kenkyū-buntansha) NAMAI Hyoji  Univ. of Tsukuba, Inst. of Agri. and Forest. Assistant Professor, 農林学系, 助教授 (80015677)
Project Period (FY) 1989 – 1991
KeywordsOryza sativa / shattering gene / semi-dwarfing gene / linkage / abscission layer
Research Abstract

The development of semi-dwarf rice cultivars has brought about a breakthrough in yield potential of yield in many rice growing countries of the world. It has become apparent that most semi-dwarf rice cultivars in the tropical and temperate regions carry the semi-dwarfing gene at the same locus As the Dee-geo-woo-gen gene sd-1.
The linkage analysis between the semi-dwarfism and the shattering habit in both indica semidwarf cultivar Taicuiig Native 1 and japonica semi-dwarf cultivar Shiranui were carried out. The japonica tall cultivar Norin 29 and the two near-isogenic lines SC2 and SC4 were used in this study. SC2 and SC4 have both semi-dwarfing gene sd-1 and shattering gene derived from Taichung Native 1 and Shiranui, respectively. The degree of shattering was measured by an, apparatus for measuring the breaking tensile strength of the base of sterile lemma. The segregation patterns of shattering habit in the F_2s of SC2/Norin 29 and SC4/Norin 29 showed fit to a 3 non-shattering : 1 shattering genetic ratio, indicating that both SC2 and SC4 carry a single recessive gene controlling shattering habit, respectively. The F_1 and F_2 of SC2/SC4 showed the same shattering habit as that of both parents. Therefore, both SC2 and SC4 were considered to have the same shattering gene. The linkage relationship between the semi-dwarfing gene and the shattering gene was observed in the F_2s of SC2/Norin 29 and SC4/Norin 29. The weighted average of the recombination values estimated from the two-crosses was 13.1 %. A Chinese semi-dwarf cultivar was also proved to have the sd-l and the shattering gene linked to the sd-l in the 1st chromosome. From these result, it is assumed that the shattering gene has been transmitted to many semi-dwarf cultivars together with the sd-l in the breeding programs of semi-dwarf high-yielding cultivars. This shattering gene was symbolized sh-2.
The abscission layer at the base of sterile lemma was observed before heading time.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 大場 伸哉,鶴貝 裕子,菊池 文雄: "イネの半矮性遺伝子sdー1と脱粒性遺伝子の連鎖。第1報インド型半矮性品種台中在来1号と日本型半矮性品種シラヌイにおける半矮性・遺伝子sdー1と脱粒性・遺伝子の連鎖分析" 熱帶農業. 33. 286-291 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oba.S and F.Kikuchi: "Linkage relationship between semidwarfing gene sd-1 and gene for grain shattering in rice" Proceedings of the 6th International Congress of SABRAO. 305-308 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oba.S and F.Kikuchi: "Formation of abscission layer controlled by a shattering gene linked with a semidwarfing gene sd-1 in rice" Rice Genetics Newsletters. 6. 132-134 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oba.S,F.Kikuchi and K.Maruyama: "Genetic analysis of semidwarfness and reain shattering of Chinese rice variety "Ai-Jio-Nan-Te"" Japanese Journal of Breeding. 40. 13-20 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 大場 伸哉・菊池 文雄: "イネ半矮性系統X46の持つ半矮性突然遺伝子の同定" 筑波大学農林技術センタ-研究報告. 3. 1-7 (1991)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oba.S and F.Kikuchi: "Genetic studies of Grain Shattering in Rice in "Rice Genetics"" IRRI, (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oba, S., A. Nakamura, Y. Tsurumi and F. Kikuchi: "Linkage relationship between semi-dwarfing gene sd-1 and shattering gene in rice (Oryza sativa L.) 1. Linkage analysis between semi-dwarfing gene and shattering gene in indica semi-dwarf variety "Taichung (Native) 1 and japonica semi-dwarf variety Shiranui. (In Japanese)" Japan. J. Trop. Agr.33(4). 286-291 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Oba, S. and F. Kikuchi: "Linkage relationship between semi-dwarfing gene sa-1 and gene for grain shattering in rice." Proceedings of the 6th Internationa Congress of SABRAO. 305-308 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Oba, S. and F. Kikuchi: "Formation of abscission layer controlled by a shattering gene linked with a semi-dwarfing gene sd-1 in rice." Rice Genetics Newsletters. 6. 132-134 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Oba, S, F. Kikuchi and K. Maruyama: "Genetic analysis of semi-dwarfness and grain shattering of Chinese rice variety "Ai-Jio-Nan-Te" ." Japan. J. Breed.40(1). 13-20 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Oba, S. and F. Kikuchi: "Identification of semi-dwarf mutant gene carried by rice semi-dwarf line X 46." Bull. Agr. & For. Res. U. Tsukuba. 3. 1-7 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Oba, S. and F. Kikuchi: "Genetic studies of grain shattering in rice" Rice Genetics. (1992)

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

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Published: 1993-03-16  

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