Analysis of powdery mildew resistance in the Spanish barley core collection

被引：16

作者：

Silvar, C. ^{[1
]}

Flath, K. ^{[2
]}

Kopahnke, D. ^{[3
]}

Gracia, M. P. ^{[1
]}

Lasa, J. M. ^{[1
]}

Casas, A. M. ^{[1
]}

Igartua, E. ^{[1
]}

Ordon, F. ^{[3
]}

机构：

[1] CSIC, Aula Expt Stn, Dept Genet & Plant Prod, E-50080 Zaragoza, Spain

[2] Julius Kuhn Inst, Inst Plant Protect Field Crops & Grassland, D-14532 Kleinmachnow, Germany

[3] Julius Kuhn Inst, Inst Resistance Res & Stress Tolerance, D-06484 Quedlinburg, Germany

来源：

PLANT BREEDING | 2011年 / 130卷 / 02期

关键词：

barley; core collection; disease resistance; powdery mildew; gene postulation; F-SP HORDEI; BLUMERIA-GRAMINIS; GENES; LINES; IDENTIFICATION; POPULATIONS; SELECTIONS; LANDRACES; DIVERSITY; WINTER;

D O I：

10.1111/j.1439-0523.2010.01843.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

P>The Spanish Barley Core Collection, consisting of one hundred and fifty-nine landrace-derived inbred lines and sixteen cultivars, was characterized for resistance to powdery mildew (Blumeria graminis f. sp. hordei) using a set of 27 isolates with a wide spectra of virulences/avirulences on most of the genes expected to occur in Europe. No landrace-derived line and no cultivar were resistant to all the isolates but at least three landraces showed infection types below 2 for 23 isolates. Twenty-two landraces and one cultivar showed resistance against half of the isolates used. Eleven isolates were sufficient to separate the majority of resistance profiles. In total, thirty-four resistance spectra were detected and fourteen resistance genes/alleles were postulated alone or in combination: MlLa, Mlh, Mlg, Mla22, Mla7(Mlu), Mla7(Mlk), Mlk, Mla12, Mla9, Mla3, Mla6(Mla14), Mlra and Mla1. The majority of resistance spectra are composed only by one line. Resistance in twenty-one landrace-derived lines and four cultivars was based on either unidentified genes or combinations of known and unknown genes/alleles. Therefore, the SBCC may be a source for broadening the genetic base of powdery mildew resistance.

引用

页码：195 / 202

页数：8

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