Identification of genome and chromosomes triggering chromosome elimination in haploid breeding using Imperata cylindrica system

• Project/Area Number: 22580004
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Breeding science
• Research Institution: Osaka Kyoiku University
• Principal Investigator: MUKAI Yasuhiko 大阪教育大学, 教育学部, 教授 (30110795)
• Co-Investigator(Kenkyū-buntansha): SUZUKI Go 大阪教育大学, 教育学部, 准教授 (10314444)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 育種学 / 染色体消失 / 半数体 / 遺伝子 / ゲノム / タルホコムギ / チガヤ / 半数体形成 / コムギ / 半数体育種 / マカロニコムギ / Dゲノム / ヘテロクロマチン / コルヒチン / ムギ類 / 遠縁交雑 / セントロメア

Research Abstract

Haploid induction through chromosome elimination by remote hybridization has been a practical technique in wheat breeding using double haploid.Tagging of the specific genome and chromosome(s) of wheat and its relatives triggering chromosome elimination was carried out in wheat x Imperata cylindrica system. The mechanism of haploid induction was investigated at molecular-cytogenetic level. The 2D and 7D chromosomes of Aegilops tauschii are deeply involved in chromosome elimination and the subsequent growth of a haploid embryo. The results of research contribute to wheat improvement by the double haploid breeding.

Research Products

• [Presentation] Recent trends in chromosome botany from microscope to molecule (2013)
  • Author(s): 向井 康比己
  • Organizer: 第100回インド科学者会議 (招待講演)
  • Place of Presentation: コルカタ大学(インド)
  • Year and Date: 2013-01-05
• [Presentation] Recent trends in Aegilops tauschii chromosome research (2011)
  • Author(s): 向井 康比己
  • Organizer: Archana Sharma Memorial Lecture 2011 (招待講演)
  • Place of Presentation: コルカタ大学(インド)
  • Year and Date: 2011-12-27
• [Presentation] Recent trends in plant chromosome research (2011)
  • Author(s): 向井康比己
  • Organizer: Archana Sharma Memorial Lecture 2011
  • Place of Presentation: インド・コルカタ大学
  • Year and Date: 2011-12-27
• [Presentation] Recent advance in Aegilops tauschii chromosome research (2010)
  • Author(s): 向井 康 比 己
  • Organizer: 第4回アジア染色体コロキウム(招待講演)
  • Place of Presentation: Fragrant Hill Empark Hotel (北京、中国)
  • Year and Date: 2010-10-12
• [Presentation] Recent advance in Aegilops tauschii chromosome research (2010)
  • Author(s): 向井康比己
  • Organizer: 第4回アジア染色体コロキウム
  • Place of Presentation: Fragrant Hill Empaik Hotel(北京、中国)
  • Year and Date: 2010-10-12
• [Presentation] Recent trends in chromosome botany from microscope to molecules
  • Author(s): 向井康比己
  • Organizer: 第100回インド科学者会議
  • Place of Presentation: インド コルカタ
  • Invited
• [Book] 植物の遺伝と育種第2 版 (2013)
  • Author(s): 福井 希一、向井 康比己、佐藤 和広
  • Total Pages: 238
  • Publisher: 朝倉書店
• [Book] 植物の遺伝と育種第2版 (2013)
  • Author(s): 福井希一
  • Total Pages: 238
  • Publisher: 朝倉書店