Five years of bi-directional genetic selection for honey bees resistant and susceptible to Varroa jacobsoniJ.M. Kulincevica, T.E. Rindererb, V.J. Mladjana and S.M. Bucoc
a Ro PKB Institute "Agroekonomik", PLC Holding Co, Belgrade ustanicka 64, 11000 Belgrade, Yugoslavia
b US Department of Agriculture, Agricultural Research Service, Honey-Bee Breeding, Genetics and Physiology Laboratory, 1157 Ben Hur Road, Baton Rouge, LA, 70820, USA
c Statistical Resources Inc, 7332 Highland Road, Baton Rouge, LA, 70808, USA
Abstract - Two lines of honey bees (Apis mellifera carnica) were selectively propagated from an assembled parental stock through four generations. The resulting lines of bees diverged to be comparatively resistant and susceptible, respectively, to Varroa jacobsoni. Much of this phenotypic variation in honey bee response to Varroa jacobsoni has a genetic component. Since important portions of this genetic variation are additive, selective breeding shows good promise for providing the desired long-term solutions to Varroa mite difficulties.
Key words: Apis mellifera / Varroa jacobsoni / genetic selection / resistant line / heritability