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FSOV 2018 D DéLiBeRe-JNO: development of cereal varieties adapted to and resistant to the yellow dwarf virus (DelibeRe-JNO)
Project
Project code: JKI-RS-08-3429
Contract period: 01.09.2019
- 01.08.2022
Purpose of research: Applied research
The Barley Yellow Dwarfism Virus (BYDV) is one of the most important pathogens in wheat, barley and oat. Transmitted exclusively by aphids (Rhopalosiphum padi and Sitobion avenae), BYDV causes yield losses of 30% on average, which can reach more than 80% during major epidemics (season 2015-2016). Direct control of the viruses is impossible, and only control of the vectors proves to be an effective countermeasure. However, reducing the use of pesticides and banning certain groups of active substances that are widely used in the fight against virus vectors (neonicotinoids, banned for cereals from autumn 2018) considerably weakens the current control strategy. This requires the various players (from farmers to breeders) in the cereals sector to invest heavily in research to find new solutions for ensuring crop quality. As a result, the development of varieties that are resistant or tolerant to BYDV is now more than ever one of the priorities of research. The work, which started several decades ago, showed that there was no source of tolerance/resistance to BYDV in Triticum aestivum. Therefore, addition, substitution and translocation lines with a partial BYDV resistance phenotype were generated by exploiting resistances present in wild relatives of wheat (Thinopyrum intermedium and Agropyron cristatum). However, the fragments introduced provide at the same time harmful characteristics (in particular yield losses), which must be eliminated. The DelibeRe-JNO project therefore aims to develop wheat lines with a satisfactory level of resistance to BYDV, with only small genetic fragments inserted, in order to achieve high performance from the outset in agronomic experiments.
Section overview
Subjects
- Plant Breeding
- Crop Protection
Framework programme
Funding programme
Excutive institution
Institute of Resistance Research and Stress Tolerance (JKI-RS)
