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BMC Evol Biol

Title:		The origin and evolution of queen and fertility signals in Corbiculate bees
Author(s):		Caliari Oliveira R; Oi CA; do Nascimento MM; Vollet-Neto A; Alves DA; Campos MC; Nascimento F; Wenseleers T;
Address:		"Department of Biology, Laboratory of Socioecology & Social Evolution, KU Leuven, Leuven, Belgium. ricardo.oliveira@bio.kuleuven.be. Department of Biology, Laboratory of Socioecology & Social Evolution, KU Leuven, Leuven, Belgium. cintiaakemi.oi@bio.kuleuven.be. Department of Biology, Laboratory of Behavioral Ecology, FFCLRP, University of Sao Paulo, Ribeirao Preto, Brazil. mauriciomnc21@gmail.com. Department of Biology, Laboratory of Behavioral Ecology, FFCLRP, University of Sao Paulo, Ribeirao Preto, Brazil. ayrtonneto@usp.br. Department of Entomology and Acarology, ESALQ, University of Sao Paulo, Piracicaba, Brazil. daalves@usp.br. Department of Biology, Laboratory of Behavioral Ecology, FFCLRP, University of Sao Paulo, Ribeirao Preto, Brazil. mclaudiac@bol.com.br. Department of Biology, Laboratory of Behavioral Ecology, FFCLRP, University of Sao Paulo, Ribeirao Preto, Brazil. fsnascim@usp.br. Department of Biology, Laboratory of Socioecology & Social Evolution, KU Leuven, Leuven, Belgium. tom.wenseleers@bio.kuleuven.be"
Journal Title:		BMC Evol Biol
Year:		2015
Volume:		20151116
Issue:
Page Number:		254 -
DOI:		10.1186/s12862-015-0509-8
ISSN/ISBN:		1471-2148 (Electronic) 1471-2148 (Linking)
Abstract:		"BACKGROUND: In social Hymenoptera (ants, bees and wasps), various chemical compounds present on the cuticle have been shown to act as fertility signals. In addition, specific queen-characteristic hydrocarbons have been implicated as sterility-inducing queen signals in ants, wasps and bumblebees. In Corbiculate bees, however, the chemical nature of queen-characteristic and fertility-linked compounds appears to be more diverse than in ants and wasps. Moreover, it remains unknown how queen signals evolved across this group and how they might have been co-opted from fertility signals in solitary ancestors. RESULTS: Here, we perform a phylogenetic analysis of fertility-linked compounds across 16 species of solitary and eusocial bee species, comprising both literature data as well as new primary data from a key solitary outgroup species, the oil-collecting bee Centris analis, and the highly eusocial stingless bee Scaptotrigona depilis. Our results demonstrate the presence of fertility-linked compounds belonging to 12 different chemical classes. In addition, we find that some classes of compounds (linear and branched alkanes, alkenes, esters and fatty acids) were already present as fertility-linked signals in the solitary ancestors of Corbiculate bees, while others appear to be specific to certain species. CONCLUSION: Overall, our results suggest that queen signals in Corbiculate bees are likely derived from ancestral fertility-linked compounds present in solitary bees that lacked reproductive castes. These original fertility-linked cues or signals could have been produced either as a by-product of ovarian activation or could have served other communicative purposes, such as in mate recognition or the regulation of egg-laying"
Keywords:		Animals Bees/*chemistry/classification/*genetics/physiology Biological Evolution Female Fertility Hydrocarbons/analysis Male Oviposition Phylogeny Reproduction Sex Attractants/*chemistry;
Notes:		"MedlineCaliari Oliveira, Ricardo Oi, Cintia Akemi do Nascimento, Mauricio Meirelles Castro Vollet-Neto, Ayrton Alves, Denise Araujo Campos, Maria Claudia Nascimento, Fabio Wenseleers, Tom eng Research Support, Non-U.S. Gov't England 2015/11/18 BMC Evol Biol. 2015 Nov 16; 15:254. doi: 10.1186/s12862-015-0509-8"