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DISENTANGLING THE EFFECTS OF MATING PROPENSITY AND MATING CHOICE IN DROSOPHILA

1998; Oxford University Press; Volume: 52; Issue: 1 Linguagem: Inglês

10.1111/j.1558-5646.1998.tb05145.x

1558-5646

P. Casares, Maria C. Carracedo, Beatriz del Río, R. Piñeiro, Lucía García‐Flórez, A.R. Barros,

Insect-Plant Interactions and Control

EvolutionVolume 52, Issue 1 p. 126-133 ArticleFree Access DISENTANGLING THE EFFECTS OF MATING PROPENSITY AND MATING CHOICE IN DROSOPHILA Pelayo Casares, Pelayo Casares Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainE-mail: pcg@sauron.quimica.uniovi.esCorresponding author.Search for more papers by this authorMaria C. Carracedo, Maria C. Carracedo Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorBeatriz del Rio, Beatriz del Rio Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorRafael Pineiro, Rafael Pineiro Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorLucia Garcia-Florez, Lucia Garcia-Florez Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorAna R. Barros, Ana R. Barros Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this author Pelayo Casares, Pelayo Casares Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainE-mail: pcg@sauron.quimica.uniovi.esCorresponding author.Search for more papers by this authorMaria C. Carracedo, Maria C. Carracedo Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorBeatriz del Rio, Beatriz del Rio Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorRafael Pineiro, Rafael Pineiro Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorLucia Garcia-Florez, Lucia Garcia-Florez Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this authorAna R. Barros, Ana R. Barros Departamento de Genetica, Facultad de Medicina, Julian Claveria s/n 33071, Oviedo, SpainSearch for more papers by this author First published: 31 May 2017 https://doi.org/10.1111/j.1558-5646.1998.tb05145.xCitations: 39 Corresponding Editor: E. Zouros E-mail: pcg@sauron.quimica.uniovi.es Corresponding author. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Incipient sexual isolation between genotypes, lines, or populations of the same species is commonly measured in Drosophila by choice tests. Results of these tests are known to be influenced, in an undetermined manner, by the mating propensity of competitors and by discriminatory factors during courtship. We have approached the problem by measuring male and female propensities in separate, independent tests, and by examining whether these estimates could explain the results of the choice tests. First, male and female choice tests were used to measure sexual isolation between populations of Drosophila melanogaster and between populations of D. simulans. Significant deviations from random mating occurred in 31 out of 48 tests, in agreement with the propensity values of the tested genotypes. We conclude that mating propensity instead of discrimination is directly involved in the estimation of sexual isolation in our populations, and advise against the application of male and female choice tests to assess intraspecific isolation without a proper knowledge of the mating propensities of competing individuals. Second, multiple choice tests were used to assess isolation between D. melanogaster populations. In examining the dynamics of matings throughout the test, we show that if competing individuals differ in mating propensities and tests are long enough to allow most matings to happen, a spurious sexual isolation can appear. We recommend that multiple choice tests be terminated once 50 percent of matings had been observed. Citing Literature Volume52, Issue1February 1998Pages 126-133 ReferencesRelatedInformation