Unexpected worker mating and colony-founding in a superorganism

文献类型： 外文期刊

第一作者： Zhuang, Mingsheng

作者： Zhuang, Mingsheng;Guo, Yulong;Zhang, Zhengyi;Liu, Fugang;Xia, Zhongyan;Zhang, Zhihao;Li, Yuanjian;Xu, Jin;Guo, Yueqin;Qu, Yingping;Yao, Jun;Yang, Huipeng;Yang, Fan;Li, Xiaoying;Li, Jilian;Zhuang, Mingsheng;Dai, Xueyan;Colgan, Thomas J.;Wang, Liuhao;Guo, Jun;Brown, Mark J. F.

作者机构：

期刊名称：NATURE COMMUNICATIONS （ 影响因子：16.6； 五年影响因子：17.0 ）

ISSN：

年卷期： 2023 年 14 卷 1 期

页码：

收录情况： SCI

摘要： The emergence of caste-differentiated colonies, which have been defined as 'superorganisms', in ants, bees, and wasps represents a major transition in evolution. Lifetime mating commitment by queens, pre-imaginal caste determination and lifetime unmatedness of workers are key features of these animal societies. Workers in superorganismal species like honey bees and many ants have consequently lost, or retain only vestigial spermathecal structures. However, bumble bee workers retain complete spermathecae despite 25-40 million years since their origin of superorganismality, which remains an evolutionary mystery. Here, we show (i) that bumble bee workers retain queen-like reproductive traits, being able to mate and produce colonies, underlain by queen-like gene expression, (ii) the social conditions required for worker mating, and (iii) that these abilities may be selected for by early queen-loss in these annual species. These results challenge the idea of lifetime worker unmatedness in superorganisms, and provide an exciting new tool for the conservation of endangered bumble bee species. Workers in social insects such as honey bees, bumble bees, and ants are expected to spend their lives helping their mother reproduce. Here the authors show that workers of several bumble bee species can in fact mate and lead colonies of their own.

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