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« Previous AbstractEffects of lipopolysaccharide and juvenile hormone III treatments on cell growth and gene expression in the Ceratitis capitata (Diptera: Tephritidae) CCE/CC128 cell line    Next AbstractDigest: Chemical communication and sexual selection in lizards »

Sci Rep


Title:Dietary constraints can preclude the expression of an honest chemical sexual signal
Author(s):Garcia-Roa R; Saiz J; Gomara B; Lopez P; Martin J;
Address:"Department of Evolutionary Ecology, National Museum of Natural Sciences, Spanish Research Council (MNCN- CSIC), Jose Gutierrez Abascal, 2, 28006, Madrid, Spain. r.garcia-roa@mncn.csic.es. Department of Instrumental Analysis and Environmental Chemistry, Spanish Research Council (IQOG- CSIC), Juan de la Cierva, 3, 28006, Madrid, Spain. Department of Evolutionary Ecology, National Museum of Natural Sciences, Spanish Research Council (MNCN- CSIC), Jose Gutierrez Abascal, 2, 28006, Madrid, Spain"
Journal Title:Sci Rep
Year:2017
Volume:20170720
Issue:1
Page Number:6073 -
DOI: 10.1038/s41598-017-06323-8
ISSN/ISBN:2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:"Identifying the factors that underlie signal divergences remains challenging in studies of animal communication. Regarding the chemical signalling, different compounds can be found in some species but be absent in others. We hypothesized that if the costs that are associated with the expression of some compounds are too high, their presence in the signal may be restricted. However, these compounds may be expressed and be functional when those costs are relaxed. Vitamin E (alpha-tocopherol), a dietary compound with metabolic relevancy, acts as an honest chemical sexual signal in many lizards but no in others such as the Carpetan Rock lizard (Iberolacerta cyreni). We investigated whether dietary supplementation favours the expression of this vitamin in scents of I. cyreni. We show that dietary constraints can preclude the expression of vitamin E in chemical secretions of wild males because was expressed when it was experimentally provided in the diet. Vitamin E supplementation also heightened the immune response of males and increased the interest of their scent for females, highlighting the vitamin E as a chemical sexual signal in this species. We suggest that diet could decisively act as a driver of intra- and interspecific divergences in the chemical signalling of lizards"
Keywords:"*Animal Communication Animals Female *Gene Expression Lizards/physiology Male Sex Attractants/*genetics *Sexual Behavior, Animal;"
Notes:"MedlineGarcia-Roa, Roberto Saiz, Jorge Gomara, Belen Lopez, Pilar Martin, Jose eng Research Support, Non-U.S. Gov't England 2017/07/22 Sci Rep. 2017 Jul 20; 7(1):6073. doi: 10.1038/s41598-017-06323-8"

 
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