Powdery mildew resistance in winter barley cultivars

被引：30

作者：

Dreiseitl, A. ^{[1
]}

机构：

[1] Agr Res Inst Kromeriz Ltd, CZ-76701 Kromeriz, Czech Republic

来源：

PLANT BREEDING | 2007年 / 126卷 / 03期

关键词：

Hordeum vulgare; Blumeria graminis f. sp hordei; Erysiphe graminis f. sp hordei; reaction types; resistance spectra; postulation; resistance genes; pedigree;

D O I：

10.1111/j.1439-0523.2007.01348.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Powdery mildew is the most common disease of barley in the Czech Republic and winter barley plays a crucial role in the winter survival and reproduction of the pathogen. This study was aimed at identifying resistance genes in winter barley cultivars grown in the Czech Republic from 1971 to 2005 by using the method of postulation. Forty-one cultivars and a parental line were tested at the seedling stage for their reaction to 32 selected isolates of Blumeria graminis f. sp. hordei. In total, 26 resistance spectra were detected and the following 18 resistance genes were found: Mla6, Mla7, Mla8, Mla13, Mla14, MlaMu2, MlaNo3, MlaRu4, Mlg, Mlh, MlLa, Mlra, Ml(Bw), Ml(Ch), Ml(Dr2), Ml(Dt5), Ml(IM9) and Ml(St). Two cultivars ('Kiruna' and 'Sorna') exhibited heterogeneity for mildew resistance. Another source of Mla13 and a possible centre of origin of Ml(Bw) are discussed.

引用

页码：268 / 273

页数：6

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