Cephalo-traumatic secretion transfer in a hermaphrodite sea slug
Cephalo-traumatic secretion transfer in a hermaphrodite sea slug
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DOI：
10.1098/rspb.2013.2424
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发表时间：
2014-01-07
影响因子：
4.7
通讯作者：
Anthes, Nils
中科院分区：
文献类型：
--
作者：
Lange, Rolanda;Werminghausen, Johanna;Anthes, Nils
动物王国中的交配仪式通常是非常特别的，特别是当交配是创伤性的时候。在这里，我们描述了特殊的创伤交配行为的目前未描述的海蛞蝓，Siphopteron sp. 1。与四种同类相似，Siphopteron sp. 1通常表现出创伤性分泌物通过针状阴茎附件转移。然而，与先前的描述相反，前列腺分泌物被集中注射到伴侣的前额，据我们所知，这是第一次已知的“头部创伤性分泌物转移”。我们进一步提供了一个比较量化的注射部位的种内和种间变异，并得出一个潜在的神经生理功能的前列腺分泌物，注射接近，或进入，中枢神经系统。
Mating rituals in the animal kingdom are often quite extraordinary, in particular when mating is traumatic. We here describe the exceptional traumatic mating behaviour of the currently undescribed sea slug, Siphopteron sp. 1. Similar to four congeners, Siphopteron sp. 1 routinely exhibits traumatic secretion transfer through a stylet-like penis appendage. Contrary to previous descriptions, however, prostate secretions are injected centrally into the partner's forehead, representing, to our knowledge, the first-known instance of 'cephalo-traumatic secretion transfer'. We further provide a comparative quantification of within-and between-species variation in injection sites and derive a potential neurophysiological function of prostate secretions that are injected close to, or into, the central nervous system.