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Recurrent origin of a sexually selected trait in Xiphophorus fishes inferred from a molecular phylogeny

Recurrent origin of a sexually selected trait in Xiphophorus fishes inferred from a molecular phylogeny

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MEYER, Axel, Jean M. MORRISSEY, Manfred SCHARTL, 1994. Recurrent origin of a sexually selected trait in Xiphophorus fishes inferred from a molecular phylogeny. In: Nature. 368(6471), pp. 539-542. ISSN 0028-0836

@article{Meyer1994Recur-6717, title={Recurrent origin of a sexually selected trait in Xiphophorus fishes inferred from a molecular phylogeny}, year={1994}, doi={10.1038/368539a0}, number={6471}, volume={368}, issn={0028-0836}, journal={Nature}, pages={539--542}, author={Meyer, Axel and Morrissey, Jean M. and Schartl, Manfred} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/6717"> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:creator>Morrissey, Jean M.</dc:creator> <dc:contributor>Morrissey, Jean M.</dc:contributor> <dcterms:issued>1994</dcterms:issued> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:28:39Z</dc:date> <dc:contributor>Meyer, Axel</dc:contributor> <dc:language>eng</dc:language> <dc:creator>Schartl, Manfred</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:28:39Z</dcterms:available> <dcterms:title>Recurrent origin of a sexually selected trait in Xiphophorus fishes inferred from a molecular phylogeny</dcterms:title> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/6717"/> <dc:contributor>Schartl, Manfred</dc:contributor> <dcterms:abstract xml:lang="eng">DARWIN believed that sexual selection accounts for the evolution of exaggerated male ornaments, such as the sword-like caudal fin extensions of male fishes of the genus Xiphophorus, that appear detrimental to survival. Swordtails continue to feature prominently in empirical work and theories of sexual selection; the pre-existing bias hypothesis has been offered as an explanation for the evolution of swords in these fishes. Based upon a largely morphological phylogeny, this hypothesis suggests that female preference to mate with sworded males arose in ancestrally swordless species, thus pre-dating the origin of the sword itself and directly driving its evolution. Here we present a molecular phylogeny (based on mitochondria! and nuclear DNA sequences) of Xiphophorus which differs from the traditional one: it indicates that the sword originated and was lost repeatedly. Our phylogeny suggests that the ancestor of the genus is more likely to have possessed a sword than not, thus questioning the applicability of the pre-existing bias hypothesis as an explanation for the evolution of this sexually selected trait.</dcterms:abstract> <dc:creator>Meyer, Axel</dc:creator> <dc:format>application/pdf</dc:format> <dc:rights>deposit-license</dc:rights> <dcterms:bibliographicCitation>First publ. in: Nature 368 (1994), pp. 539-542</dcterms:bibliographicCitation> </rdf:Description> </rdf:RDF>

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