Identification of two genes for resistance to Triticum isolates of Magnaporthe oryzae in wheat

被引：58

作者：

Zhan, S. W. ^{[1
]}

Mayama, S. ^{[1
]}

Tosa, Y. ^{[1
]}

机构：

[1] Kobe Univ, Grad Sch Agr Sci, Plant Pathol Lab, Kobe, Hyogo 6578501, Japan

来源：

GENOME | 2008年 / 51卷 / 03期

关键词：

Magnaporthe oryzae; Triticum isolate; resistance gene; wheat;

D O I：

10.1139/G07-094

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

A screening of common wheat cultivars revealed that Triticum aestivum 'Thatcher' was resistant to Triticum isolates of Magnaporthe oryzae, whereas T aestivum 'Chinese Spring' was susceptible. When F-2 seedlings from a cross between 'Thatcher' and 'Chinese Spring' were inoculated with the Triticum isolates, resistant and susceptible seedlings segregated in a 15:1 ratio, suggesting that the resistance of 'Thatcher' was conditioned by two major genes. An inoculation test of 'Chinese Spring' substitution lines carrying individual chromosomes from 'Thatcher' indicated that these genes, designated Rmg2 and Rmg3, were located on chromosomes 7A and 6B.

引用

页码：216 / 221

页数：6

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