Potential Multiple Functions of a Male Sea Lamprey Pheromone
نویسندگان
چکیده
منابع مشابه
Potential multiple functions of a male sea lamprey pheromone.
Introduction The sea lamprey is a useful animal model for understanding the role of olfactory communication in reproduction (Teeter, 1980; Li et al., 2003a). Our research has focused on characterizing the structure and function of pheromones that signal mating readiness in adults. Sexually mature sea lampreys are virtually blind (Manion and Hanson, 1980), cease feeding (Larson, 1980) and likely...
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The role of the C24 sulphate in the mating pheromone component, 7α,12α,24-trihydroxy-5α-cholan-3-one 24-sulphate (3kPZS), to specifically induce upstream movement in ovulated female sea lampreys Petromyzon marinus was investigated. 7α,12α-dihydroxy-5α-cholan-3-one 24-oic acid (3kACA), a structurally similar bile acid released by spermiated males, but lacking the C24 sulphate ester, was tested i...
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Receiver bias models suggest that a male sexual signal became exaggerated to match a pre-existing sensory, perceptual or cognitive disposition of the female. Accordingly, these models predict that females of related taxa possessing the ancestral state of signalling evolved preference for the male trait in a non-sexual context. We postulated that female preference for the male-released bile alco...
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Organisms continuously acquire and process information from surrounding cues. While some cues complement one another in delivering more reliable information, others may provide conflicting information. How organisms extract and use reliable information from a multitude of cues is largely unknown. We examined movement decisions of sea lampreys (Petromyzon marinus L.) exposed to a conspecific and...
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The sea lamprey is an ancient, parasitic fish that invaded the Great Lakes a century ago, where it triggered the collapse of many fisheries. Like many fishes, this species relies on chemical cues to mediate key aspects of its life, including migration and reproduction. Here we report the discovery of a multicomponent steroidal pheromone that is released by stream-dwelling larval lamprey and gui...
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ژورنال
عنوان ژورنال: Chemical Senses
سال: 2005
ISSN: 0379-864X,1464-3553
DOI: 10.1093/chemse/bjh237