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title: Associations between reproduction and work in workers of the Asian hive bee Apis cerana
author: Tan, Ken;  Wang, Yuchong;  Dong, Shihai;  Liu, Xiwen;  Zhuang, Di;  Chen, Weiwen;  Oldroyd, Benjamin P.
Issued Date: 2015
Abstract: If a honey bee (Apis spp.) colony becomes queenless, about 1/3 of young workers activate their ovaries and produce haploid male-producing eggs. In doing so queenless workers maximize their inclusive fitness because the normal option of vicarious production of relatives via their queen's eggs is no longer available. But if many workers are engaged in reproduction, how does a queenless colony continue to feed its brood and forage? Here we show that in the Asian hive bee Apis cerana hypopharyngeal gland (HPG) size is larger in queenless workers than in queenright workers and that bees undertaking brood-rearing tasks have larger HPG than same-aged bees that are foraging. In queenless colonies, workers with a smaller number of ovarioles are more likely to have activated ovaries. This reinforces the puzzling observation that a large number of ovarioles reduces reproductive success in queenless A. cerana. It further suggests that reproductive workers either avoid foraging or transition to foraging later in life than nonreproductive workers. Finally, our study also showed that ovary activation and larger-than-average numbers of ovarioles had no statistically detectable influence on foraging specialization for pollen or nectar. (C) 2015 Elsevier Ltd. All rights reserved.
Related URLs: 10.1016/j.jinsphys.2015.08.003
Appears in Collections:2012年后新成立研究组_期刊论文

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Recommended Citation:
Tan, Ken,Wang, Yuchong,Dong, Shihai,et al. Associations Between Reproduction And Work In Workers Of The Asian Hive Bee Apis Cerana[J]. Journal Of Insect Physiology,2015,82(X):33-37.

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