Artikel Alle Rechte vorbehalten
referiert
Veröffentlicht

Genetic analysis of a worldwide barley collection for resistance to net form of net blotch disease (Pyrenophora teres f. teres)

GND
1171454465
Zugehörigkeit
Julius Kühn-Institute (JKI), Institute for Resistance Research and Stress Tolerance, Germany
Novakazi, Fluture;
Zugehörigkeit
All-Russian Research Institute of Plant Protection, Russia
Afanasenko, Olga;
Zugehörigkeit
All-Russian Research Institute of Plant Protection, Russia
Anisimova, Anna;
Zugehörigkeit
Queensland Department of Agriculture and Fisheries, Hermitage Research Facility, Warwick, QLD, 4370, Australia.
Platz, Gregory J.;
Zugehörigkeit
Department of Plant Breeding, IFZ Research Centre for Biosystems, Land Use and Nutrition, Justus Liebig University, Heinrich-Buff-Ring 26, 35392, Giessen, Germany.
Snowdon, Rod;
Zugehörigkeit
Federal Research Center the N. I. Vavilov All-Russian Institute of Plant Genetic Resources, Russia
Kovaleva, Olga;
Zugehörigkeit
Republican Unitary Enterprise, The Research and Practical Center of the National Academy of Sciences of Belarus for Arable Farming, Belarus
Zubkovich, Alexandr;
GND
172295300
Zugehörigkeit
Julius Kühn-Institute (JKI), Institute for Resistance Research and Stress Tolerance, Germany
Ordon, Frank

KEY MESSAGE:A total of 449 barley accessions were phenotyped for Pyrenophora teres f. teres resistance at three locations and in greenhouse trials. Genome-wide association studies identified 254 marker-trait associations corresponding to 15 QTLs. Net form of net blotch is one of the most important diseases of barley and is present in all barley growing regions. Under optimal conditions, it causes high yield losses of 10-40% and reduces grain quality. The most cost-effective and environmentally friendly way to prevent losses is growing resistant cultivars, and markers linked to effective resistance factors can accelerate the breeding process. Here, 449 barley accessions expressing different levels of resistance comprising landraces and commercial cultivars from the centres of diversity were selected. The set was phenotyped for seedling resistance to three isolates in controlled-environment tests and for adult plant resistance at three field locations (Belarus, Germany and Australia) and genotyped with the 50 k iSelect chip. Genome-wide association studies using 33,818 markers and a compressed mixed linear model to account for population structure and kinship revealed 254 significant marker-trait associations corresponding to 15 distinct QTL regions. Four of these regions were new QTL that were not described in previous studies, while a total of seven regions influenced resistance in both seedlings and adult plants.

Dateien

Zitieren

Zitierform:
Zitierform konnte nicht geladen werden.

Zugriffsstatistik

Gesamt:
Volltextzugriffe:
Metadatenansicht:
12 Monate:
Volltextzugriffe:
Metadatenansicht:

Rechte

Rechteinhaber: Springer-Verlag GmbH Germany, part of Springer Nature 2019

Nutzung und Vervielfältigung:
Alle Rechte vorbehalten