Andersson, Stig
- Department of Crop Science, Swedish University of Agricultural Sciences
Abstract
Protein variability of 27 populations of cyst nematodes belonging to the Heterodera avenae complex were studied using isoelectric focusing (IEF). Sixteen Norwegian populations were compared with standard populations of H. avenae, H. filipjevi, H. mani and H. arenaria. Norwegian populations were also tested for pathotype on selected cereal cultivars. Based on differences in the protein banding pattern, eight clusters of populations could be recognised. Nine Norwegian populations grouped together with H. avenae standards. The three Swedish populations: Knislinge, Ringsasen and Vaxtorp, previously classified as H. avenae, differed from this species, from H. filipjevi and from each other. Four Norwegian populations clustered together with the Vaxtorp population. Two Norwegian populations formed a cluster together with a Swedish H. filipjevi standard. The Norwegian population Brekstad differed from all other populations, as did the standards of H. mani and H. arenaria. Pathotype testing of the Norwegian populations identified ten populations as H. avenae pathotype Ha 11, while three were close to pathotype Ha 12. The two H. filipjevi populations were close to the Swedish pathotype west. The Brekstad population differed from all others also in host spectrum. This population and the Vaxtorp-group demonstrate a complexity within the Norwegian cereal cyst nematodes that merits further investigation
Published in
Nematology
2004, volume: 6, pages: 857-865
Publisher: BRILL ACADEMIC PUBLISHERS
SLU Authors
UKÄ Subject classification
Agricultural Science
Publication identifier
- DOI: https://doi.org/10.1163/1568541044038551
Permanent link to this page (URI)
https://res.slu.se/id/publ/7166