Journal
FEBS LETTERS
Volume 584, Issue 12, Pages 2496-2503Publisher
WILEY
DOI: 10.1016/j.febslet.2010.04.007
Keywords
Senescence; Social behavior; Care-giving; Sibling; Vitellogenin; Insulin-like signaling
Funding
- Research Council of Norway [175413, 180504, 185306, 191699]
- National Institute on Aging (NIA) [P01 AG22500]
- PEW Charitable Trust
- Wissenschaftskolleg zu Berlin
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As in all advanced insect societies, colony-organization in honey bees emerges through a structured division of labor between essentially sterile helpers called workers. Worker bees are sisters that conduct all social tasks except for egg-laying, for example nursing brood and foraging for food. Curiously, aging progresses slowly in workers that engage in nursing and even slower when bees postpone nursing during unfavorable periods. We, therefore, seek to understand how senescence can emerge as a function of social task performance. The alternative utilization of a common yolk precursor protein (vitellogenin) in nursing and somatic maintenance can link behavior and aging plasticity in worker bees. Beneficial effects of vitellogenin may also be mediated by inhibitory action on juvenile hormone and insulin-like signaling. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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