Mapping of quantitative trait loci affecting Drechslera teres resistance in barley with molecular markers

被引：48

作者：

Richter, K ^{[1
]}

Schondelmaier, J ^{[1
]}

Jung, C ^{[1
]}

机构：

[1] Univ Kiel, Inst Pflanzenbau & Pflanzenzuchtung, D-24118 Kiel, Germany

来源：

THEORETICAL AND APPLIED GENETICS | 1998年 / 97卷 / 08期

关键词：

Hordeum vulgare; Drechslera teres; resistance; AFLP; quantitative trait loci;

D O I：

10.1007/s001220051014

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Resistance loci for seedling-stage resistance to net blotch disease (Drechslera teres) in barley were mapped with molecular markers in an F-2 population derived from a cross between the susceptible barley cultivar 'Arena' and the resistant Ethiopian landrace 'Hor 9088'. Disease reactions were scored with first and second leaves of 2-week-old plants 7 and 9 days after inoculation with a single spore-derived isolate. For linkage analysis, 22 RFLP markers and 284 AFLP markers were used. The seven linkage groups covered 1153.3 cM with an average marker interval of 3.76 cM. The resistance was determined to be inherited in a quantitative manner. Altogether, 12 QTLs were mapped with positions depending on the leaf used for testing and the time period after infection. Heritability in the broad sense ranged between 0.21 and 0.37.

引用

页码：1225 / 1234

页数：10

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