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Queen–signal modulation of worker pheromonal composition in honeybees
Year:
2004
Authors :
Soroker, Victoria
;
.
Volume :
271
Co-Authors:

Katzav-Gozansky, T., Boulay R. and Hefetz, A.

Facilitators :
From page:
2065
To page:
2069
(
Total pages:
5
)
Abstract:

Worker sterility in honeybees is neither absolute nor irreversible. Whether under queen or worker control, it is likely to be mediated by pheromones. Queen–specific pheromones are not exclusive to queens; workers with activated ovaries also produce them. The association between ovarian activation and queen–like pheromone occurrence suggests the latter as providing a reliable signal of reproductive ability. In this study we investigated the effect of queen pheromones on ovary development and occurrence of queen–like esters in workers' Dufour's gland. Workers separated from the queenright compartment by a double mesh behaved like queenless workers, activating their ovaries and expressing a queen–like Dufour's gland secretion, confirming that the pheromones regulating both systems are non–volatile. Workers with developed ovaries produced significantly more secretion than sterile workers, which we attribute primarily to increased ester production. Workers separated from the queenright compartment by a single mesh displayed a delayed ovarian development, which we attribute to interrupted transfer of the non–volatile pheromone between compartments. We suggest that worker expression of queen–like characters reflects a queen–worker arms race; and that Dufour's gland secretion may provide a reliable signal for ovarian activation. The associative nature between ovary development and Dufour's gland ester production remains elusive.

Note:
Related Files :
Apis mellifera
bees
Dufour's gland
Honey bees
pheromones
worker reproduction
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More details
DOI :
https://doi.org/10.1098/rspb.2004.2839
Article number:
0
Affiliations:
Database:
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
55594
Last updated date:
02/03/2022 17:27
Creation date:
14/07/2021 11:35
Scientific Publication
Queen–signal modulation of worker pheromonal composition in honeybees
271

Katzav-Gozansky, T., Boulay R. and Hefetz, A.

Queen–signal modulation of worker pheromonal composition in honeybees

Worker sterility in honeybees is neither absolute nor irreversible. Whether under queen or worker control, it is likely to be mediated by pheromones. Queen–specific pheromones are not exclusive to queens; workers with activated ovaries also produce them. The association between ovarian activation and queen–like pheromone occurrence suggests the latter as providing a reliable signal of reproductive ability. In this study we investigated the effect of queen pheromones on ovary development and occurrence of queen–like esters in workers' Dufour's gland. Workers separated from the queenright compartment by a double mesh behaved like queenless workers, activating their ovaries and expressing a queen–like Dufour's gland secretion, confirming that the pheromones regulating both systems are non–volatile. Workers with developed ovaries produced significantly more secretion than sterile workers, which we attribute primarily to increased ester production. Workers separated from the queenright compartment by a single mesh displayed a delayed ovarian development, which we attribute to interrupted transfer of the non–volatile pheromone between compartments. We suggest that worker expression of queen–like characters reflects a queen–worker arms race; and that Dufour's gland secretion may provide a reliable signal for ovarian activation. The associative nature between ovary development and Dufour's gland ester production remains elusive.

Scientific Publication
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