Departamento de Ecología Evolutiva, Museo Nacional de Ciencias Naturales, CSIC, José Gutiérrez Abascal 2, 28006 Madrid, Spain.
Z Naturforsch C J Biosci. 2013 May-Jun;68(5-6):253-8.
Chemical signals have an important role in the reproductive behaviour of many lizards. However, the compounds secreted by their femoral or preanal glands, which may be used as sexual signals, are mainly known for lizard species within the Scleroglossa clade, whereas compounds in secretions of lizards within the Iguania clade are much less studied. Based on mass spectra, obtained by GC-MS, we found 60 lipophilic compounds in preanal gland secretions of the male tree agama (Acanthocercus atricollis) (fam. Agamidae), including steroids (mainly cholesterol, cholest-3-ene, and some of their derivatives), fatty acids ranging between n-C12 and n-C18 (mainly hexadecanoic and octadecenoic acids), ketones from n-C17 to n-C25, and other minor compounds, such as tocopherol, squalene, waxy esters, and furanones. We compare the compounds found with those present in other lizard species and discuss their potential function in social behaviour.
化学信号在许多蜥蜴的生殖行为中起着重要作用。然而，它们的股腺或前肛腺分泌的化合物，可能被用作性信号，主要是在鳞脚蜥目蜥蜴中被了解，而在鬣蜥目蜥蜴的分泌物中则研究得较少。基于 GC-MS 获得的质谱，我们在雄性树巨蜥（Acanthocercus atricollis）（科：鬣蜥科）的前肛腺分泌物中发现了 60 种亲脂性化合物，包括甾体（主要是胆固醇、胆甾-3-烯和它们的一些衍生物）、n-C12 到 n-C18 之间的脂肪酸（主要是十六烷酸和十八烯酸）、n-C17 到 n-C25 的酮类化合物，以及其他一些微量化合物，如生育酚、角鲨烯、蜡酯和呋喃酮。我们将发现的化合物与其他蜥蜴物种中的化合物进行比较，并讨论它们在社会行为中的潜在功能。
