Why do avirulence genes of the rice blast fungus undergo multiple translocation?-A hypothesis that crabgrass plays a role as their repository

Research Project

Project/Area Number	22658014
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Plant pathology
Research Institution	Kobe University
Principal Investigator	TOSA Yukio 神戸大学, 大学院・農学研究科, 教授 (20172158)
Project Period (FY)	2010 – 2011
Project Status	Completed (Fiscal Year 2011)
Budget Amount *help	¥3,490,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥390,000) Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000) Fiscal Year 2010: ¥1,800,000 (Direct Cost: ¥1,800,000)
Keywords	いもち病 / 非病原力遺伝子 / Magnaporthe oryzae / Pyricularia oryzae / イネ / メヒシバ / Pricularia oryzae / Avirulence gene / Rice / Blast / crabgrass
Research Abstract	We examined distribution of avirulence genes in Pycucularia populations. AVR-Pita2, a homolog of the AVR-Pita avirulence gene family corresponding to the Pita resistance gene, was found in Panicum isolates of P. oryzae and Digitaria isolates of P. grisea. AVR-Pii2, a homolog of the AVR-Pii family corresponding to the Pii resistance gene, was found in Oryza isolates of P. oryzae and Cenchrus isolates of Pyricularia sp. AVR-Pii3, another homolog of the AVR-Pii family, was present in Triticum isolates of P. oryzae and Cenchrus isolates of Pyricularia sp. These results suggest that horizontal transfer of avirulence genes are not rare event in the blast fungi.

Report

(3 results)