Gain of Virulence Caused by Insertion of a Pot3 Transposon in a Magnaporthe grisea Avirulence Gene
Open Access
- 1 May 2001
- journal article
- research article
- Published by Scientific Societies in Molecular Plant-Microbe Interactions®
- Vol. 14 (5) , 671-674
- https://doi.org/10.1094/mpmi.2001.14.5.671
Abstract
The avirulence gene AVR-Pita in Magnaporthe grisea prevents the fungus from infecting rice cultivars carrying the disease resistance gene Pi-ta. Insertion of Pot3 transposon into the promoter of AVR-Pita caused the gain of virulence toward Yashiro-mochi, a rice cultivar containing Pi-ta, which demonstrated the ability of Pot3 to move within the M. grisea genome. The appearance of Pot3 in M. grisea seems to predate the diversification of various host-specific forms of the fungus.Keywords
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