Targets of old resistance genes and their implications in plant speciation

• Project/Area Number: 26660034
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Plant protection science
• Research Institution: Kobe University
• Principal Investigator: TOSA YUKIO 神戸大学, (連合)農学研究科(研究院), 教授 (20172158)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: Pyricularia oryzae / 抵抗性遺伝子 / 非病原力遺伝子 / いもち病菌 / うどんこ病菌 / コムギ / オオムギ / 遺伝子対遺伝子

Outline of Final Research Achievements

Rwt4, a wheat resistance gene against the oat blast fungus, is located at the same locus as Pm10, a wheat resistance gene against the wheatgrass powdery mildew fungus. Southern blot analyses suggested that PWT4 corresponding to Rwt4 is different from Ppm10 corresponding to Pm10.
Rmo2, a barley resistance gene, is effective against various subgroups of the blast fungus. The candidate genomic region with Rmo2 was delimited to 50kb through fine mapping.

Research Products

• [Presentation] Fine-mapping of Rmo2, a resistance locus in barley against the blastu fungus (2015)
  • Author(s): Tagle, A.G., Hyon, G.S., Yamaji, N., Hisano, H., Sato, K., Chuma, I., and Tosa, Y.
  • Organizer: 日本植物病理学会大会
  • Place of Presentation: 明治大学
  • Year and Date: 2015-03-30