AN EXPERIMENT FOR GENETIC TRANSMISSION OF HYGIENIC BEHAVIOR IN HONEYBEES

CECILIA COSTA, M.C. MAN, M. LODESANI

Abstract


Next to productive performances and somehow direct economic value, the attention of queen breeders is recently oriented back to those characteristics which contribute to the increasing of the bee colonies to the most infectious bee disease: American foulbrood (AFB). It is already known for a few decades that the resistance to AFB is hereditary and responds to artificial selection. The mechanisms that determines it are quite numerous and complex, but one of the most important and above all the easiest to be measured, is the hygienic behavior, defined as the capacity of bees to recognize, to uncover and evacuate ill or dead larvae or pupae (nymphs). It represents a rare type of behavior mechanism of resistance to diseases and it is considered the primary mechanism to self-defense in facing at least 2 of the diseases of the bee brood: AFB and chalk brood. In the last years, the researches carried out to verify this behavior are truly effective and aren’t far to establish exactly the role in resistance to parasite. The hygienic behavior represents the generalized behavior answer to eliminate the pathogen agents and parasites from the nest, minimizing the adaptation of specific pathogen agents to the adult bees’ genotypes.

Keywords


honeybee; behaviour; genetics

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DOI: http://dx.doi.org/10.15835/buasvmcn-asb:62:0:2727


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