首页|Queens remate despite traumatic mating in stingless bees

Queens remate despite traumatic mating in stingless bees

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Males can control female reproduction using genital plugs to impede access by rivals.In social bees,ants,and wasps,plugging may involve traumatic mating,with females being harmed.In stingless bees,chances are that plugs may promote ovarian activan,and are thought to ensure sin-gle mating—a general tendency among the social Hymenoptera.However,understanding on rela-tionships between mating plugs,traumatic mating,and mating systems in stingless bees remains limited.To address this,we(1)compared mated queens of 7 Neotropical species to understand the patterns of copulatory marks in females and(2)compared pre-and post-mating genitalia of males and females in Melipona fasciculata to depict plug functional morphology.Data revealed an unpre-cedented consequence of mating in stingless bees:the characteristic marks left by mating plugs on female abdomens and the inferences that can be made from them.To our surprise,in 1 species M.fasciculata we found that queens retain the plug long after mating,and may carry it for the rest of their lives.All the other 6 species retained the plug for only a short period.Remated queens were only found in M.seminigra,whose multiple copulatory marks match previous findings of polyan-dry in this species.Our study shows that queens can remate,and suggests that male genital morphology may determine in part the time persistence of plugs.We conclude that traumatic mat-ing plugs do not fully prevent remating in stingless bees and that mating systems are not uniform in this group.Nonetheless,exceptional cases of facultative polyandry in social insects—for ex-ample,when mating plugs fail—may confirm a general tendency for single mating in close link with efficient mating plugs.

copulatory marksfacultative polyandrygenital morphologymale harmsexual conflict

Jamille Costa VEIGA、Gustavo Rodrigo Sanches RUIZ、Gislene Almeida CARVALHO-ZILSE、Cristiano MENEZES、Felipe Andrés León CONTRERA

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Bee Biology and Ecology Lab,Instituto de Ciências Biológicas,Universidade Federal do Pará,Belém,66075-110 Pará,Brazil

Biodiversity and Ecosystem Services Research Group,Instituto Tecnológico Vale—Desenvolvimento Sustentável,Belém,66055-090 Pará,Brazil

Ecology and Zoology of Invertebrates Lab,Instituto de Ciências Biológicas,Universidade Federal do Pará,Belém,66075-110 Pará,Brazil

Bee Research Group,Instituto Nacional de Pesquisas da Amaz?nia,Manaus,69067-375 Amazonas,Brazil

Research and Development,Embrapa Meio Ambiente,Jaguariúna,13820-000 S?o Paulo,Brazil

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Coordena-o de Aperfei-oamento de Pessoal de Nível Superior-CAPES/Empresa Brasileira de Pesquisa Agropecuária-EMBRAPAConselho Nacional de Desenvolvimento Científico e Tecnológico-CNPq through the PVE 2014 Project

15/2014400435/2014-4

2022

10.1093/cz/zoab019

动物学报(英文版)
中国科学院动物研究所,中国动物学会

动物学报(英文版)

CSCDSCI
影响因子：0.198
ISSN：1674-5507
年,卷(期)：2022.68(1)
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