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AVR1-CO39 is a predominant locus governing the broad avirulence of Magnaporthe oryzae 2539 on cultivated rice (Oryza sativa L.).

Molecular plant-microbe interactions : MPMI - 1 Jan 2011

Zheng Yan, Zheng Wenhui, Lin Fucheng, Zhang Ying, Yi Yunping, Wang Baohua, Lu Guodong, Wang Zonghua, Wu Weiren

Abstract excerpt

Magnaporthe oryzae 2539 was previously found to be avirulent to most rice cultivars and, therefore, was assumed to carry many avirulence (AVR) genes. However, only one AVR gene, AVR1-CO39, which corresponds to a resistance (R) gene Pi-CO39(t) in rice cv. CO39, has been found from 2539 thus far. In order to identify more AVR genes, we isolated 228 progeny strains from a cross between 2539 and Guy11, an M. oryzae...

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PMID: 20879839
DOI: 10.1094/MPMI-10-09-0240

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 5 Sept 2026. Manifest publication-graph-cohort-2026-09-05.1.

Source receipt: pubmed, retrieved 5 Sept 2026.

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