title: Expression of genes related to reproduction and pollen foraging in honey bees (Apis mellifera) narcotized with carbon dioxide.
abstract: It has been proposed that a honey bee (Apis mellifera) worker's preference for foraging for pollen or nectar is modulated by a gene network that was originally involved in regulating the reproductive cycles of an ancestral solitary species. We used carbon dioxide to induce narcosis in queens and workers. This treatment is known to initiate oogenesis in queens, reduce oogenesis in queenless workers and to change worker foraging preference. We then assessed changes in gene expression of genes suspected to be involved in either foraging behaviour or reproduction. We show that some genes change expression in the opposite direction between castes in response to treatment. Our results therefore support the hypothesis that reproductive and foraging traits are causally related in the honey bee.
authors.affiliation: Behaviour and Genetics of Social Insects Laboratory, School of Biological Sciences, University of Sydney, Sydney, NSW, Australia.
authors.forename: R M
authors.initials: RM
authors.lastname: Brito
authors.forename: M
authors.initials: M
authors.lastname: McHale
authors.forename: B P
authors.initials: BP
authors.lastname: Oldroyd
mesh_terms: D000818:Animals; D001516:Bees / Q000187:drug effects* / Q000235:genetics*; D002245:Carbon Dioxide / Q000494:pharmacology*; D005247:Feeding Behavior / Q000187:drug effects*; D005260:Female; D005786:Gene Expression Regulation / Q000187:drug effects*; D015999:Multivariate Analysis; D009294:Narcotics / Q000494:pharmacology*; D010053:Ovary / Q000187:drug effects / Q000378:metabolism; D011058:Pollen / Q000187:drug effects / Q000378:metabolism*; D012098:Reproduction / Q000187:drug effects / Q000235:genetics; D012930:Social Dominance
chemical_list: D009294:Narcotics; D002245:Carbon Dioxide