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首页> 外文期刊>Biochemical Systematics and Ecology >Species specificity of methyl ketone profiles in the skin lipids of female garter snakes, genus Thamnophis
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Species specificity of methyl ketone profiles in the skin lipids of female garter snakes, genus Thamnophis

机译：Thamnophis雌性吊袜带蛇皮肤脂质中甲基酮谱的物种特异性

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摘要

One of the relatively few vertebrate pheromones to be chemically identified, the female sex pheromone of the red-sided garter snake (Thamnophis sirtalis parietalis) is a series of saturated and monounsaturated methyl ketones contained within female skin lipids. During the breeding season, this pheromone is responsible for eliciting male courtship behaviors and males are able to utilize pheromonal variation to discriminate among females. While the pheromone system of the red-sided garter snake has been the subject of many studies, relatively little is known about the pheromone systems of other garter snakes. Through chemical analyses, we demonstrate that female skin lipids of the red-spotted garter snake (Thamnophis sirtalis concinnus), northwestern garter snake (Thamnophis ordinoides), and plains garter snake (Thamnophis radix) contain similar methyl ketones. The methyl ketone profiles of these snakes differ qualitatively from one another and from the methyl ketone profiles of red-sided garter snakes with differences particularly pronounced between sympatric species. Our results provide evidence that the use of methyl ketones in sexual signaling may be ubiquitous for Thamnophis species and suggest that these compounds could play a role in reproductive isolation between species in this genus. (C) 2014 Elsevier Ltd. All rights reserved.
机译：红边短袜蛇（Thamnophis sirtalis parietalis）的雌性信息素是化学上相对较少的脊椎动物信息素之一，是雌性皮肤脂质中所含的一系列饱和和单不饱和甲基酮。在繁殖季节，这种信息素负责引发男性求偶行为，而雄性则能够利用信息素变化来区分雌性。尽管红边短袜蛇的信息素系统已成为许多研究的主题，但对其他短袜蛇的信息素系统了解甚少。通过化学分析，我们证明了红色斑点的吊袜带蛇（Thamnophis sirtalis continnus），西北的吊袜带蛇（Thamnophis ordinoides）和平原的吊袜带蛇（Thamnophis radix）的女性皮肤脂质都含有相似的甲基酮。这些蛇的甲基酮特征在质量上与红边短袜蛇的甲基酮特征在质量上有所不同，同胞物种之间的差异尤为明显。我们的结果提供了证据，证明在甲基苯丙胺类物种中性信号中使用甲基酮可能无处不在，并表明这些化合物可能在该属物种之间的生殖分离中发挥作用。 （C）2014 Elsevier Ltd.保留所有权利。

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