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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Chemical fingerprints suggest direct familiarisation rather than phenotype matching during olfactory recognition in Australian sea lions (Neophoca cinerea)
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Chemical fingerprints suggest direct familiarisation rather than phenotype matching during olfactory recognition in Australian sea lions (Neophoca cinerea)

机译：化学指纹表明澳大利亚海狮（Neophoca Cinerea）的嗅觉识别期间直接熟悉而不是表型匹配

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摘要

Olfaction is one of the most commonly used senses for communication among animals and is of particular importance to mother-offspring recognition in mammals. The use of smell in offspring recognition has been well studied, however, we often lack information about the underlying mechanistic basis for olfactory recognition. Using gas chromatography-mass spectrometry (GC-MS), we examine chemical profiles of two different colonies of Australian sea lions (Neophoca cinerea) and assess similarity of chemical fingerprints in mother-pup pairs. This analysis allows us to examine whether a chemical base for phenotype matching exists in this species. Our results showed no GC-detectible mother-offspring similarity in the overall chemical fingerprints, suggesting that direct familiarisation is a more likely mechanism used by Australian sea lion mothers for recognition of their young. Our analysis also demonstrates that colony differences are encoded within chemical fingerprints and appear to be highly influenced by environmental compounds. The study improves our understanding of how Australian sea lion females use odours for selective offspring recognition and the potential importance of environmentally acquired chemical compounds in the overall odour bouquet used in mother-pup interactions.
机译：嗅觉是动物之间最常用的传播感官之一，对哺乳动物中的母后代识别特别重要。然而，在后代识别中使用嗅觉已经很好地研究，但是，我们经常缺乏有关嗅觉识别的基础机制基础的信息。使用气相色谱 - 质谱（GC-MS），我们检查澳大利亚海狮（Neophoca Cinerea）的两种不同殖民地的化学曲线，并评估母幼崽对中化学指纹的相似性。该分析允许我们检查该物种中是否存在表型匹配的化学基础。我们的结果表明，整体化学指纹没有GC可检测的母亲后代相似性，这表明直接熟悉是澳大利亚海狮母亲使用的更可能机制，以确认他们的年轻人。我们的分析还证明了群体差异在化学指纹内编码，并且似乎受到环境化合物的高度影响。该研究改善了我们对澳大利亚海狮女性如何使用气味进行选择性后代识别以及在母PUP相互作用中使用的整体气味花束中的环境获得的化学化合物的潜在重要性。

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