In recent years, PNYDV (Pea necrotic yellow dwarf virus), a nanovirus, has caused major crop failures in Austria and Germany. Peas, field beans, lentils and vetches are particularly affected. In 2016, virus infections caused crop losses of up to 35% in green pea cultivation in Austria, and in some cases there were even total crop failures - a major problem for farmers and the downstream production of frozen vegetables. There are no direct control options against viruses. Indirect control measures such as vector control are also only possible to a limited extent (availability of approved insecticides). Only the cultivation of resistant varieties offers sustainable protection against viral diseases.
Within the project, a total of about 1,300 different pea accessions will be tested for resistance to PNYDV. Since aphids as vectors are the only transmission route, different pea genotypes will be artificially infected (by the green pea aphid) under glasshouse conditions. After an incubation period, it will be serologically tested whether the individual accessions could be infected with the virus. The aim of the project is to find sources of resistance to PNYDV. If this is successful, it will be possible to develop molecular markers for pea breeding. In this way, varieties that are resistant to PNYDV could be made available to farmers in the future.
Three research partners are involved in the project. The Genbank Gatersleben (IPK) provides the pea accessions and the Julius Kühn-Institut (JKI) Braunschweig and AGES test the accessions for resistance to PNYDV.
Project title: Screening of Pisum sativum (pea) accessions for pea necrotic yellow dwarf virus resistance.
Project acronym: SPITFIRE
Project Management: Julius Kühn-Institute (JKI) Braunschweig
Project management AGES: DI Dr. Sabine Grausgruber-Gröger, Institute for Sustainable Plant Production
Project partners: Julius Kühn-Institut (JKI), Braunschweig, Genebank Gatersleben (IPK)
Funding: FFG Basic Program/CORNET
Last updated: 17.04.2023