Journal
CURRENT BIOLOGY
Volume 20, Issue 22, Pages 2028-2031Publisher
CELL PRESS
DOI: 10.1016/j.cub.2010.10.020
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Funding
- Natural Environment Research Council
- NERC [NE/C520439/2] Funding Source: UKRI
- Natural Environment Research Council [NE/C520439/2] Funding Source: researchfish
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The origin of eusociality is often regarded as a change of macroevolutionary proportions [1,2] Its hallmark is a reproductive division of labor between the members of a society some individuals ('helpers or 'workers) forfeit their own reproduction to rear offspring of others (queens') In the Hymenoptera (ants, bees, wasps), there have been many transitions in both directions between solitary nesting and sociality [2-5] How have such transitions occurred? One possibility is that multiple transitions represent repeated evolutionary gains and losses of the traits underpinning sociality A second possibility, however, is that once sociality has evolved, subsequent transitions represent selection at just one or a small number of loci controlling developmental switches between preexisting alternative phenotypes [2,6] We might then expect transitional populations that can express either sociality or solitary nesting, de pending on environmental conditions Here, we use held transplants to directly induce transitions in British and Irish populations of the sweat bee Halictus rubicundus Individual variation in social phenotype was linked to time available for offspring production, and to the genetic benefits of sociality, suggesting that helping was not simply misplaced parental care [7] We thereby demonstrate that sociality itself can be truly plastic in a hymenopteran
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