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Locating exotic genes that control agronomic traits under stress in a wild barley nested association mapping (NAM) population (BARLEY-NAM)
Project
Project code: JKI-RS-08-3380
Contract period: 01.04.2014
- 28.02.2017
Purpose of research: Inventory & Assessment
Extending plant biodiversity is one key issue in order to cope with the current challenges in agricultural production, where increasing incidences of drought and other abiotic and biotic stress conditions due to climate change and probable reductions in fertilizer and pesticide applications threaten future agronomic productivity. In this regard, recently HEB25 (Halle exotic barley), the first barley nested association mapping population world-wide was developed, which consists of 1,420 BC1S3 lines in 25 families originating from crosses of the elite barley cultivar Barke with 25 wild barley (H. vulgare ssp. spontaneum) donor accessions. HEB-25 is ideally suited to both study the biodiversity present in the wild relative of barley and to be a source of exotic alleles for barley breeding to enhance traits of agronomic importance, like tolerance to drought and nitrogen deficiency or resistance against pathogens. We will study the trait complexes nitrogen stress tolerance, drought stress tolerance and pathogen resistance because of their particular relevance to the aforementioned challenges to agricultural production. JKI will test the NAM population for resistance against Puccinia striiformis, Puccinia hordei and Pyrenophora teres and will identify genes/QTL involved in resistance by association genetics studies.
Section overview
Subjects
- Plant Breeding
- Crop Protection
Framework programme
Funding programme
Excutive institution
Institute of Resistance Research and Stress Tolerance (JKI-RS)