Introduction of alien genes into common wheat by means of homoeologous pairing induced by B chromosomes

• Project/Area Number: 23658009
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Breeding science
• Research Institution: Kyoto University
• Principal Investigator: ENDO Takashi 京都大学, 大学院・農学研究科, 教授 (60068830)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: パンコムギ / ライムギ / B 染色体 / 同祖染色体対合 / 異種遺伝子 / コムギ / 染色体対合 / Ｂ染色体 / 同祖染色体 / 組換え

Research Abstract

Meiotic pairing of homoeologous chromosomes of different species is called ‘homoeologous pairing’, which is a crucial event in introducing alien useful genes into common wheat. Rye B chromosomes are supernumerary chromosomes and are supposed to induce homoeologous paring. I have successfully introduced fragmented rye B chromosomes into common wheat. In this study, I did research on which region of the rye B chromosome is responsible for the induction of homoeologous pairing .

Research Products

• [Journal Article] Effect of a rye B chromosome and its segments on homoeologous pairing in hybrids between common wheat and Aegilops variabilis (2012)
  • Author(s): Kousaka R, Endo TR
  • Journal Title: Genes & Genetic Systems Volume: 87巻 Pages: 1-7
  • URL: https://www.jstage.jst.go.jp/article/ggs/87/1/87_1_1/_pdf
  • Peer Reviewed
• [Journal Article] Effect of a rye B chromosome and its segments on homoeologous pairing in hybrids between common wheat and Aegilops variabilis (2012)
  • Author(s): Kousaka R, Endo TR
  • Journal Title: Genes Genet Syst Volume: 87巻 Pages: 1-7
  • Peer Reviewed
• [Presentation] Chromosome mapping of a gene loci controlling meiotic chromosome pairing in wheat (2012)
  • Author(s): Giri Prasad Joshi, Takashi R. Endo, Shuhei Nasuda
  • Organizer: 日本遺伝学会84回大会
  • Place of Presentation: 九州大学医学部
  • Year and Date: 2012-09-25
• [Presentation] パンコムギに導入されたライムギ B 染色体の染色体不分離 (2011)
  • Author(s): 高坂亮太、遠藤隆
  • Organizer: 日本遺伝学会 83回大会
  • Place of Presentation: 京都大学農学部
  • Year and Date: 2011-09-22
• [Presentation] パンコムギに導入されたライムギB染色体の染色体不分離 (2011)
  • Author(s): Kousaka R, Endo TR
  • Organizer: 日本遺伝学会82回大会
  • Place of Presentation: 京都大学農学部
• [Presentation] Chromosome mapping of a gene loci controlling meiotic chromosome pairing in wheat
  • Author(s): Giri Prasad Joshi, Takashi R. Endo, Shuhei Nasuda (Takashi R. Endo)
  • Organizer: 日本遺伝学会84回大会
  • Place of Presentation: 九州大学医学部