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First Chemical Analysis and Characterization of the Male Species-Specific Cephalic Labial-Gland Secretions of South American Bumblebees

Abstract : The evolution of signals and reproductive traits involved in the pre-mating recognition has been in focus of abundant research in several model species, such as bumblebees (genus Bombus). However, the most-studied bumblebee reproductive trait, the male cephalic labial gland secretions (CLGS), remains unknown among bumblebee species from South America. In this study, the CLGS of five South American bumblebees of the subgenera Thoracobombus (Bombus excellens and B. atratus) and Cullumanobombus (B. rubicundus, B. hortulanus, and B. melaleucus) were investigated, by comparing the chemical compositions of their secretions to those of closely related European species. The results showed an obvious interspecific differentiation in both subgenera. The interspecific differentiation among the species of the Thoracobombus subgenus involved different compounds present at high contents (main compounds), while those of the Cullumanobombus subgenus shared the same main components. This suggests that among the species of the Cullumanobombus subgenus, the differentiation in minor components could lead to species discrimination.
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https://hal.univ-lorraine.fr/hal-01575790
Contributor : Urafpa Ul <>
Submitted on : Friday, December 11, 2020 - 8:50:48 AM
Last modification on : Tuesday, January 26, 2021 - 2:35:18 PM
Long-term archiving on: : Friday, March 12, 2021 - 6:49:12 PM

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Nicolas Brasero, Baptiste Martinet, Klara Urbanova, Irena Valterova, Alexandra Torres, et al.. First Chemical Analysis and Characterization of the Male Species-Specific Cephalic Labial-Gland Secretions of South American Bumblebees. Chemistry and Biodiversity, Wiley, 2015, 12 (10), pp.1535-1546. ⟨10.1002/cbdv.201400375⟩. ⟨hal-01575790⟩

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