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New compounds, sexual differences, and age-related variations in the femoral gland secretions of the lacertid lizard Acanthodactylus boskianus

Khannoon, Eraqi R.; Flachsbarth, Birte; El-Gendy, Afaf; Mazik, Krysia; Hardege, Jörg D.; Schulz, Stefan

Authors

Eraqi R. Khannoon

Birte Flachsbarth

Afaf El-Gendy

Stefan Schulz



Abstract

Integumental gland secretions in lizards have been postulated to play a role as semiochemicals, but few studies have analysed the chemical nature of the gland secretions used in communication. We analysed the femoral gland secretions of Acanthodactylus boskianus using GC-MS, compared secretions of both sexes and different ages of males. For the first time in reptiles monoglycerides of fatty acids and glycerol monoethers of long chain alcohols were identified. In addition, alcohols, steroids, carboxylic acids, alkanes, amides, aldehydes, carboxylic acid esters, and squalene occurred. Sexual differences and age correlation in the amount of all major groups of compounds occurred, as such these results strengthen the theory that these secretions are used as semiochemicals. This work lays the foundations to test in future the role of chemical cues in mate choice and dominance hierarchies in lizards and to test the activity of compounds in behavioural assays to eventually identify the pheromones. (C) 2011 Elsevier Ltd. All rights reserved.

Journal Article Type Article
Publication Date 2011-04
Journal BIOCHEMICAL SYSTEMATICS AND ECOLOGY
Print ISSN 0305-1978
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 39
Issue 2
Pages 95-101
APA6 Citation Khannoon, E. R., Flachsbarth, B., El-Gendy, A., Mazik, K., Hardege, J. D., & Schulz, S. (2011). New compounds, sexual differences, and age-related variations in the femoral gland secretions of the lacertid lizard Acanthodactylus boskianus. Biochemical Systematics and Ecology, 39(2), 95-101. https://doi.org/10.1016/j.bse.2011.01.008
DOI https://doi.org/10.1016/j.bse.2011.01.008
Keywords Acanthodactylus boskianus; Femoral gland secretions; Glycerol monoethers; Monoglycerides; Sexual variability; Pheromones
Publisher URL https://www.sciencedirect.com/science/article/pii/S0305197811000202?via%3Dihub