Mangiacotti, Marco; Pezzi, Stefano; Fumagalli, Marco; Coladonato, Alan Jioele; d’Ettorre, Patrizia; Leroy, Chloe; Bonnet, Xavier; Zuffi, Marco A. L.; Scali, Stefano; Sacchi, Roberto published the artcile< Seasonal Variations in Femoral Gland Secretions Reveals some Unexpected Correlations Between Protein and Lipid Components in a Lacertid Lizard>, Product Details of C27H44O, the main research area is seasonal variation femoral gland protein lipid component Podarcis; Chemical communication; Cosinor models; Femoral glands; Identity; Lizards; Podarcis muralis; Quality; Season; Testosterone.
Animals modulate intraspecific signal shape and intensity, notably during reproductive periods. Signal variability typically follows a seasonal scheme, traceable through the expression of visual, acoustic, chem. and behavioral patterns. The chem. channel is particularly important in lizards, as demonstrated by well-developed epidermal glands in the cloacal region that secrete lipids and proteins recognized by conspecifics. In males, the seasonal pattern of gland activity is underpinned by variation of circulating androgens. Changes in the composition of lipid secretions convey information about the signaler’s quality (e.g., size, immunity). Presumably, individual identity is associated with a protein signature present in the femoral secretions, but this has been poorly investigated. For the first time, we assessed the seasonal variability of the protein signal in relation to plasma testosterone level (T), glandular activity and the concentration of provitamin D3 in the lipid fraction. We sampled 174 male common wall lizards (Podarcis muralis) over the entire activity season. An elevation of T was observed one to two months before the secretion peak of lipids during the mating season; such expected delay between hormonal fluctuation and maximal physiol. response fits well with the assumption that provitamin D3 indicates individual quality. One-dimensional electrophoretic anal. of proteins showed that gel bands were preserved over the season with an invariant region; a result in agreement with the hypothesis that proteins are stable identity signals. However, the relative intensity of bands varied markedly, synchronously with that of lipid secretion pattern. These variations of protein secretion suggest addnl. roles of proteins, an issue that requires further studies.
Journal of Chemical Ecology published new progress about Adult, nonmammalian. 434-16-2 belongs to class alcohols-buliding-blocks, and the molecular formula is C27H44O, Product Details of C27H44O.
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