Erste Ergebnisse populationsgenetischer Untersuchungen von Cameraria ohridella

Wien

1997

S. 13-15

Unselbständiges Werk

200051914

Samples of 6 populations of Cameraria ohridella from different locations in Upper-, Lower Austria and Vienna (Austria) were collected and examinated by isozyme-electrophoresis using a discontinous PAGE-system. The first results indicate that only 3 of 12 isozymes (esterase, amylase and malatedehydrogenase) show polymorphism in allele frequencies. These results and the high genetic identity detected by cluster analysis seem to prove that there is only one motherpopulation responsible for the outbreak of Cameraria ohridella in Austria. Although there are signs of "inbrulling", no negative effects like epidemic occurrence of pathogens or lower rates of reproduction could be found so far.