Tactical release of a sexually-selected pheromone in a swordtail fish.

<h4>Background</h4>Chemical communication plays a critical role in sexual selection and speciation in fishes; however, it is generally assumed that most fish pheromones are passively released since most fishes lack specialized scent glands or scent-marking behavior. Swordtails (genus Xip...

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Autores principales:	Gil G Rosenthal, Jessica N Fitzsimmons, Kristina U Woods, Gabriele Gerlach, Heidi S Fisher
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/712175c82e064614a62c057e7537c596
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spelling	oai:doaj.org-article:712175c82e064614a62c057e7537c5962021-11-18T06:59:06ZTactical release of a sexually-selected pheromone in a swordtail fish.1932-620310.1371/journal.pone.0016994https://doaj.org/article/712175c82e064614a62c057e7537c5962011-02-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21339807/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Chemical communication plays a critical role in sexual selection and speciation in fishes; however, it is generally assumed that most fish pheromones are passively released since most fishes lack specialized scent glands or scent-marking behavior. Swordtails (genus Xiphophorus) are widely used in studies of female mate choice, and female response to male chemical cues is important to sexual selection, reproductive isolation, and hybridization. However, it is unclear whether females are attending to passively produced cues, or to pheromones produced in the context of communication.<h4>Methodology/principal findings</h4>We used fluorescein dye injections to visualize pulsed urine release in male sheepshead swordtails, Xiphophorus birchmanni. Simultaneous-choice assays of mating preference showed that females attend to species- and sex-specific chemical cues emitted in male urine. Males urinated more frequently in the presence and proximity of an audience (conspecific females). In the wild, males preferentially courted upstream of females, facilitating transmission of pheromone cues.<h4>Conclusions/significance</h4>Males in a teleost fish have evolved sophisticated temporal and spatial control of pheromone release, comparable to that found in terrestrial animals. Pheromones are released specifically in a communicative context, and the timing and positioning of release favors efficient signal transmission.Gil G RosenthalJessica N FitzsimmonsKristina U WoodsGabriele GerlachHeidi S FisherPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 2, p e16994 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gil G Rosenthal Jessica N Fitzsimmons Kristina U Woods Gabriele Gerlach Heidi S Fisher Tactical release of a sexually-selected pheromone in a swordtail fish.
description	<h4>Background</h4>Chemical communication plays a critical role in sexual selection and speciation in fishes; however, it is generally assumed that most fish pheromones are passively released since most fishes lack specialized scent glands or scent-marking behavior. Swordtails (genus Xiphophorus) are widely used in studies of female mate choice, and female response to male chemical cues is important to sexual selection, reproductive isolation, and hybridization. However, it is unclear whether females are attending to passively produced cues, or to pheromones produced in the context of communication.<h4>Methodology/principal findings</h4>We used fluorescein dye injections to visualize pulsed urine release in male sheepshead swordtails, Xiphophorus birchmanni. Simultaneous-choice assays of mating preference showed that females attend to species- and sex-specific chemical cues emitted in male urine. Males urinated more frequently in the presence and proximity of an audience (conspecific females). In the wild, males preferentially courted upstream of females, facilitating transmission of pheromone cues.<h4>Conclusions/significance</h4>Males in a teleost fish have evolved sophisticated temporal and spatial control of pheromone release, comparable to that found in terrestrial animals. Pheromones are released specifically in a communicative context, and the timing and positioning of release favors efficient signal transmission.
format	article
author	Gil G Rosenthal Jessica N Fitzsimmons Kristina U Woods Gabriele Gerlach Heidi S Fisher
author_facet	Gil G Rosenthal Jessica N Fitzsimmons Kristina U Woods Gabriele Gerlach Heidi S Fisher
author_sort	Gil G Rosenthal
title	Tactical release of a sexually-selected pheromone in a swordtail fish.
title_short	Tactical release of a sexually-selected pheromone in a swordtail fish.
title_full	Tactical release of a sexually-selected pheromone in a swordtail fish.
title_fullStr	Tactical release of a sexually-selected pheromone in a swordtail fish.
title_full_unstemmed	Tactical release of a sexually-selected pheromone in a swordtail fish.
title_sort	tactical release of a sexually-selected pheromone in a swordtail fish.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/712175c82e064614a62c057e7537c596
work_keys_str_mv	AT gilgrosenthal tacticalreleaseofasexuallyselectedpheromoneinaswordtailfish AT jessicanfitzsimmons tacticalreleaseofasexuallyselectedpheromoneinaswordtailfish AT kristinauwoods tacticalreleaseofasexuallyselectedpheromoneinaswordtailfish AT gabrielegerlach tacticalreleaseofasexuallyselectedpheromoneinaswordtailfish AT heidisfisher tacticalreleaseofasexuallyselectedpheromoneinaswordtailfish
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Tactical release of a sexually-selected pheromone in a swordtail fish.

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