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. 2001 May;14(5):671-4.
doi: 10.1094/MPMI.2001.14.5.671.

Gain of Virulence Caused by Insertion of a Pot3 Transposon in a Magnaporthe Grisea Avirulence Gene

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Gain of Virulence Caused by Insertion of a Pot3 Transposon in a Magnaporthe Grisea Avirulence Gene

S Kang et al. Mol Plant Microbe Interact. .
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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.

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