Postulation of leaf (brown) rust resistance genes in 70 wheat cultivars grown in the United Kingdom

被引：55

作者：

Singh, D ^{[1
]}

Park, RF ^{[1
]}

McIntosh, RA ^{[1
]}

机构：

[1] Wet Lowlands Mainland Programme Bubia, Lae 411, Morobe Province, Papua N Guinea

来源：

EUPHYTICA | 2001年 / 120卷 / 02期

关键词：

brown rust; gene postulation; leaf rust; multi-pathotype tests; Puccinia recondita f. sp tritici; Triticum aestivum; wheat;

D O I：

10.1023/A:1017578217829

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Multi-pathotype tests on 70 U.K. wheat cultivars permitted postulation of eight known seedling genes for resistance to Puccinia recondita f. sp. tritici either singly or in combinations. The most commonly detected gene was Lr13 (present in approximately 57% of cultivars), followed by Lr26 (22%), Lr37 (20%), Lr10 (17%), Lr17b (LrH) (10%), Lr1 (7%), Lr3a (6%) and Lr20 (4%). This information permitted assessments of adult plant resistance (APR) in some cultivars, in field nurseries inoculated with pathotypes of P. recondita f. sp. tritici of known pathogenicities for characterised seedling resistance genes. APR was identified in eleven cultivars, including Avalon and Maris Ranger, which lacked detectable seedling resistance genes. The results provided a better understanding of specific resistances in the cultivars tested than was available from previous reports.

引用

页码：205 / 218

页数：14

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