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Recent Articles

Association of single nucleotide polymorphisms to resistance to chalkbrood in Apis mellifera Apr 1, 2012: Chalkbrood is a honey bee brood disease that often affects colonies that are already under stress. Control of the disease can be as simple as ensuring adequate ventilation and food sources or using clean beekeeping equipment. When the infection goes unchecked, however, the overall health and productivity of the colony is greatly decreased. Some strains of honey bees seem to be more troubled by the disease than others. Efforts to control rampant infections have not been widely accepted or successful. Identifying a genetic basis for resistance in the affected larvae would be useful for breeding for improved resistance in bee populations. We here show a statistically significant association between larval chalkbrood resistance and a genomic locus. Selective breeding for larval resistance can probably work in concert with breeding for desirable characteristics such that chalkbrood can become a negligible disease among managed colonies.

Guest Editorial: An update on the COLOSS network and the “BEEBOOK: standard methodologies for Apis mellifera research” Apr 1, 2012: An update on the COLOSS network and the “BEEBOOK: standard methodologies for Apis mellifera research”

How honey bees of successive age classes are distributed over a one storey, ten frames hive Apr 1, 2012: In honey bee studies focusing on physiology, disease diagnosis or bio indication, bees are sampled from the colony. This raises the question of where in the colony samples must be taken from for specific study objectives. In this study we recorded where bees of known age are found in the hive. We recorded in a single brood box with ten frames in August that the mean proportion of bees of one (41%), two (23%), three (17%), four (11%) and five (8%) week old bees did not differ between frames. Additionally we found that there was a significant mortality of young bees in the first week after emergence. This may be partly due to the study set up but is also a natural phenomenon.