Female preference predates the evolution of the sword in swordtail fish

Research output: Contribution to journalArticlepeer-review

402 Scopus citations

Abstract

The study of female preferences and the evolution of male traits has until recently centered on genetic coevolutionary mechanisms. An alternative mechanism posits that a preference results from a preestablished bias in the female information-processing system arising from sources independent of sexual selection. Male traits then arise that are selected by this preexisting preference. The genus Xiphophorus consists of swordless platyfish and swordtails. Swordlessness is the primitive state. In this study, female platyfish, X. maculatus, were found to prefer conspedfic males with artificial swords over those without swords, despite evidence that the common ancestor of platyfish and swordtails was swordless. These results suggest that the evolution of the sword in the swordtail clade was a consequence of selection arising from a preexisting bias.

Original languageEnglish (US)
Pages (from-to)808-810
Number of pages3
JournalScience
Volume250
Issue number4982
DOIs
StatePublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Female preference predates the evolution of the sword in swordtail fish'. Together they form a unique fingerprint.

Cite this